Bernie Madoff, Jeff Epstein and Peter Nygaard also made tons of money - "achievers" in your mind, I guess. As long as you're an achiever, it's all good!
What you call his greatest contribution is actually the beginning of a fact-free/post-truth world where the right-wing base has given up any effort to critically think in favour of owning the libs to their own detriment. Rush , Hannity, Carlson are all modern-day snake-oil salesmen who still haven't realized they could make all their money tax-free if they just started their own churches. The same ignorant, slobbering , bible-thumping hicks would still tune in and as a bonus - send them a portion of their opiod-addiction settlement.
If you find ignorance, lies, racism, misogyny, intolerance and anger as positive, I guess Rush really is your kind of guy.