Genuine question, have you read any of Capital? Not trying to be an ass, but Marx explains in the first chapter, and the book I linked is a good supplementary text too. You don't have to read all of Capital; like I said, the commodity fetish gets explained in the first chapter. (Though I highly recommend taking the time to read all of Capital; it's a great text and provides the basis of a scientific critique of capitalism and class society.)
"Fetish", in "commodity fetish" refers to the commodity appearing to have mystical properties, when in actuality it's an inanimate object. But it appears animate; it appears to be capable of magical things; and it also makes social relations between people appear as relations between things, e.g. the relation of domination between capitalist and worker appears as an exchange of commodities, a wage in exchange for labour-power. The wording of "fetish" comes from an old racist conception where Europeans said that Africans had a "fetish" of particular religious objects, i.e. they ascribed magical properties to these objects that they didn't have. Whilst that old conception is racist and wrong, I think the concept of the commodity fetish still holds true.
The commodity fetish isn't particularly related to what OP is talking about. Clout-chasing is just clout-chasing. The desire to make money is because, well, we live in a capitalist society, and more money means you can get more stuff. The commodity fetish describes properties of commodities, not behaviour of people. It describes the way commodities actually appear; there's no mental process or actions you can take to undo the commodity fetish, because it is a description of the actual way commodities function under capitalism.
This is a common misunderstanding, but not correct. The commodity fetish is not something that occurs in people's minds. We could all be consciously aware of the commodity fetish but it would still happen; it doesn't describe a false belief, but it describes the actual appearance of commodities under capitalism. It falls into the category of a "real abstraction", that is, an abstraction that actually happens in real life, rather than one that is psychological. Another example of a real abstraction is abstract and concrete labour. Concrete labour is the actual labour performed, such as sewing, farming, driving, etc. Concrete labour must become abstract labour in order to exchange commodities; if I exchange cookies I baked for a T-shirt you tailored, we somehow have to make baking and tailoring commensurable, even though they are qualitatively different labour. How many cookies is a T-shirt worth? That would seem a nonsensical question at first glance, because those are two completely different things. But the value-form provides a universal quantifier of commodities, that is, socially necessary labour time, which must be a measure of abstract labour, because e.g. 1 hour of highly skilled labour is worth more than 1 hour of unskilled labour (here, "skilled" is not meant disparagingly towards unskilled labour; skilled labour is more labour because it requires education, e.g. a doctor's labour is not just 1 hour of doctoring but also 10 years of medical school split up across the doctor's whole career). Making concrete labour into abstract labour is a real abstraction, i.e. it really happens every time you exchange commodities. You can be aware of it, you can be critical of it, you can hate that it happens, but it will still happen; it is part of the exchange process. Similarly, the commodity fetish is part of the commodity form. If it were psychological, it would be divorcable from the commodity form; the exchangers of commodities could simply decide in their heads to "combat" the commodity fetish and not be beholden to it.
Marx clarifies in the section of Capital I'm talking about (the subsection of chapter 1) that the causation is not "people see objects as homogeneous labour → they exchange them", but the other way round: "people exchange products of labour → they equate different kinds of labour as human labour".
Taking directly from chapter 1 of Capital again, the commodity reflects the social characteristics of people's labour as objective characteristics of the products of labour themselves. This is a peculiar trait of commodities—in pre-capitalist societies, relations between people appeared as relations between people, but in capitalist societies, relations between people appear as relations between things. Examples Marx gives of this:
Again, we're not talking about any kind of thinking. The commodity fetish occurs without awareness, i.e. it is not a process that occurs in the mind.
I mean, no, "money means you can get more stuff" is true in the context of capitalist society. I have a job not because I love doing shitty manual labour for the capitalists I work for, but because I need a roof over my head and I need to eat. I'm alienated from the means of subsistence as a proletarian so I need to sell my labour-power to obtain means of subsistence. This is objectively correct; that's how capitalism works. Being anti-capitalist or a Marx scholar or attaining any kind of consciousness is not going to change these facts.
And content is not a commodity (or it is only in the colloquial sense, not in the Marxist or economic sense). Commodities have an exchange-value. Generally, online content is not exchanged, but distributed for free (since it can be copied nearly-infinitely nearly-freely; e.g. you reading my comment doesn't prevent anyone else from reading it).