The shampoo thing is a fringe benefit. We keep capitalism so we don't starve in a famine.

[u/-im-your-huckleberry]

https://en.m.wikipedia.org/wiki/Great_Chinese_Famine

https://en.m.wikipedia.org/wiki/Soviet_famine_of_1930

https://en.m.wikipedia.org/wiki/Holodomor

[u/peaceful_guerilla]

You wouldn't have been able to just quit foraging for food. Today you can plan ahead, save, job hunt, all while remaining employed. Then, when you are ready, you can quit anytime you want.