Meanwhile, if your yearly salary is less than $315,360 it is worth your time to pick up a penny.
math
Assume picking up a penny takes one second. There are 31536000 seconds in a year (roughly, let's not get into leap seconds). Multiply that by $.01, the value of a penny. Then you get the salary such that across the year you're making a penny every second. A caveat to this is that even if you're making more than this you need to debate what "worth your time" means because it's still a penny you wouldn't have either way, but I think this is enough to illustrate the wealth gap.
Small edit: To add to that last point, what I mean is that it's not like you stop earning your yearly salary while you're picking up a penny.
Top ten numbers under 10, starting it off with an honorable mention we have 10, which is not a number less than 10, but is equal to 10. Prior to the discovery of the concept of 0 this was the tenth number.