Indie game developers often self impose crunch that is significantly more extreme than what many AAA developers go through, which can also lead to long term health or mental issues. There are AAA games that have little to no crunch involved in production as well (although universally that's not the case for the most popular games, unfortunately).
This might seem ok with outlier games that make the creator super rich, but this thing also happens with smaller titles that have no chance in the market.