> Artists want money as much as other people, specially the ones playing big venues.
This is exactly the kind of projection I'm referring to. What makes you believe that most humans want as much money as possible - to the exclusion of all other values? Again, difficult to quantify, but I'd suggest a majority of people would put pure wealth lower down on their priority list than health, family connection, social connection, travel, time to spend on interests etc. This goes double for people who've chosen professions rooted in their own creative expression. All else being equal we'll all choose wealth - but if the cost is exploitation, all else will not be equal for most people.
It seems clear that you're conflating the microscopic numbers of 'major label' artists playing to vast audiences - effectively as employees of 360 label / marketing companies like Live Nation with the supermajority of professional touring musicians.
I'm reminded of the chap I attended college with who sold a salacious story about one of our mutual friends to a tabloid. When we found out this was happening I had a another mutual friend approach him to intervene, but heard back that it was 'too much money to turn down'. Fifteen or so years later this guy is a multi-millionaire who just lost a civil suit (and is under criminal investigation) for fraud and sexual misconduct. Most people do not operate like this - empathy is dimensional.