You can't really. Anyone who convinces them out of their mindset will simply become the replacement.

People don't fall into these mindsets because the industry being predatory creates them, they are born in specific ways that the industry predation appeals to them and they throw themselves into it.

Runescape for example, requires a specific blend of autism, nostalgia, and an extreme sunken cost fallacy to want to finally hit 99 in a skill after 15 years of working on it. If they had slightly more money as a kid growing up, they'd have afforded a real MMO instead of Runescape and be addicted to that. If they didn't play video games, they'd have fallen into some other autism hole to fill their need to mindlessly grind at like coding.