And it's not like the educated aren't doing much better either. Google makes billions but doesn't pay a ton more than anywhere else. Wages and salaries have been pretty stagnant for those making less than 200k. Meanwhile, costs increase for a net loss of income.
So what else is there to do, other than tax the rich? That's the reality they are building for themselves by being so greedy.
Also, in a civilisation where the richest tend to own law-abiding corporations succeeding on the back of innovative products/services, it is frankly to be expected that the rich will get ever more exorbitantly richer. Only in a despotic regime do the elite have a hard limit on how rich they can really be (because there's only so much wealth you can suck from starving subjects).
The fact that the rich are richer is not a problem when the entire population is getting richer.
The rich getting richer is definitely a problem when that wealth is never converted into something that benefits society and just sits around generation after generation. In the US we've completely removed the so-called 'death tax' which was actually a great thing. It forced wealth to be used instead of horded. Currently there's no incentive in the US to build a company to pass on to your kids, it's better just to keep it all in cash and hand that over. Minimal investment happens with such a system. Sure some is in stocks and bonds but generally in super-safe stuff so you just pay low capital gains and not real income tax.
There's just no excuse for CEO wages currently. The new CEO of JCPenny just got $53 million in stock for 4 months work. The stock is down since he joined. How many employees could've gotten even a little better wage instead of it going to 1 man?
I don't think people get rich or stay rich without putting in an incredible amount of work and I truly don't understand why you would penalise people for being successful.
And sure, CEO wages are ridiculously high. But the government has generally shown that it's inept at managing things like that. Is the solution to force the wages lower? Hardly. It's to allow companies like that to fail (rather than propping them up with stimulus) so that management is actually both vulnerable and accountable.