science

Why would I sell a gear for less than I paid for the metal I made it from

This right here is the entire flaw of monetary based economics. It always comes down to the profit incentive which drives people towards individualist, selfish behavior instead of thinking about the actual material efficiency or benefits.

but you still need to assure a living wage

This assumes that a "wage" is necessary and not a handicap put in place to force the masses to have to pay for access to necessities from an owning class who only serves to hoard resources for the purposes of selling it back for profit. People only need a wage because the owning class relegates necessities behind their system of private ownership and require payment before they allow people access to what should already be communal property.

do require monetary recompensation if the task is not pleasant by itself

People were doing unpleasant necessities for hundreds of thousands of years before money was even a concept. People understand that things need to be done if things are to exist. People like feeling useful in their community. So long as they are respected and provided for, they are more likely to be willing to labor for the sake of the community because they find fulfillment in hard work. Sure not everyone will, many would like to specialize in less physical labor, but there are more than enough who swear by "an honest day's work".

You still limit yourself by thinking these systems are immutable facts of life and not societal norms that can be changed.

Looks like you have a habit of being wrong in nuclear threads and no interest in learning.

Hopefully people don't listen to you, but it's obvious you don't want any help understanding