A question to PhD holders

1. Would you guys quit studying when you see money?(for instance MLM which supposedly can earn 6 figure income a month)

2. When you have studied so hard to get into PhD level with years of experience in your studies, would you just quit it completely?

To me, it doesn't make any sense, why would you study so high when you can start earning that money right after finish your SPM or a little higher education right? Once you are at a PhD level, you wouldn't just leave it, like dropping what you studied to do MLM, you would like do research and stuff like that.

What do you Master's degree or PhD holders think?

I'm just so confused.

Thanks.