Not really a disagreement, just a minor quibble, and one I'm easily convinced to give in on.
I think it's one of those things that adds into the pile of incentives that already exist, like the US tax laws' current capital gains rate- basically, if you earn your money from dividends, stock & bond portfolios, or real estate held for at least 366 days, you pay 15% income tax. If you actually have a job and work for a living, suck it up and pay up to a 35% tax rate.
Add them all together, and you're 100% correct! You get an oligarchic, static economic structure and people start looking for the pitchforks and nooses.