But I've learned that money isn't everything the hard way. However, if you're whining about being underpaid, there's something you can do about it. There are plenty of solid reasons not to however especially if you enjoy your current gig and they're paying you sufficiently that you have a promising future. Money truly isn't everything.
I also know because the day I left academia myself long ago was a major payday for me. Finally, I know because people like Andrei Karpathy pulled it off because of his excellent communication skills, intelligence and the right background. And people like Mu Li pulled it off by associating themselves with an academic who who helped found AWS AI and in his case he landed a principal engineering position straight out of school. That's the sort of position one usually only gets after one to two decades of job experience.
Can we just agree to disagree here?