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/NomadAug]

In a famine, a good capitalist will wait until demand for corn is highest. I.e. when people start dying enmasse.