I work for myself and when my friends store is busy I'll work for him for a couple hours too.
Now here's the question: What keeps me working THAT many hours as opposed to half?
Well thats quite simple:
Taxed for working, taxed for driving, taxed for fuelling, taxed for buying, taxed for selling, taxed for importing, taxed for housing, licences, regulation, permits and the government tanking the economy and inflating the currency..
I don't really see a capitalism issue here, but I do see a communism one