A criticism made of “capitalism” by its critics is that “everyone is selling something. Everything is for sale.”
And of course we think of dumb people in bad suits pushing infomercials.
But, really, what is the alternative? NOT selling something, because you have nothing to sell? That is penury, if you cannot even sell your labor.
Or not being ABLE to sell something, because it is prohibited? This is slavery, is it not, if your needs are met by those doing the prohibiting?
One can produce and not be greedy. One can sell and not be crass.
We are surrounded by voluble fools, many of them educated in the process of learned and earned ignorance, and not of the good sort.