Most of those people are slaves whose businesses work for their owners. The ones whose businesses work for themselves are much richer than you and me (or so tiny their business barely qualifies as a business)
Discussion
You mean the owner started a business to make money, who would have thought lol. People have all kinds of small business and do very well for themselves.
Again, most do very well for their owners, not themselves
And you're still ignoring all the people who just don't have any reasonable chance at starting any business
You not accepting what I said isn't me ignoring anything it's just you not accepting it. I have family members who are not college educated they didn't even finish highschool and have started several businesses and done pretty well for themselves. If you voluntarily apply for a job you are working on behalf of the owner by your own free will and again the owner is the one who risked all the capital and pays the worker an agreed upon amount from what is made, so yeah they should get paid more. If you are unhappy with your pay you are able to try to get a raise or quit and go work somewhere else that will pay you more.
How do your friends avoid filing taxes or paying them indirectly?