If anything he might be suggesting in the letter that corporations aren't paying their fair share relative to the common man.
He understands how finance works, and he understands how compound interest rates work; he got the benefit of "low interest rates" on taxes and generated a lot of wealth; if he increases taxes for upstarts and himself, the upstarts are harmed more, since he has the legacy wealth from the historical discount.
Aristocrats made the laws favor themselves, and since they already owned all the land and wealth, no one was going to challenge them inside the legal framework.
There is a tendency, once you make your own fortune, to get political influence and make laws that make it harder for others to do the same thing. Change the rules of the game so you can't fall. Lobbying is a key business skill these days.
Higher fees, higher prices, whatever lever you can pull.
With a collective, co-op, employee owned, or government run industry - one can edict the various rates and ratios.
Look at the US energy company “eversource.”
Posting huge profits in an industry directly related to life and health and yet, doubled one of its rates this year. DOUBLED. Why? “Fuel costs”.
Fuel costs which have fallen.
With a gov run electric system, people will game based on votes. Not shareholder ROI.
Plus, people have a very “interesting” history when they disagree with a gov. From protest to removal of heads from bodies...
It’s not as simple when corporations are involved.
They are more evil than any of history’s evil men.
A lot of us would prefer if the federal government actually did allocate some more of its funds to maintaining the roads and infrastructure that we have; that would be a great start.
I’m sure there are many other examples but that’s generally how I understand it. I don’t intend for my example to reflect any specific event in the past, if that matters (ie. “I made it up”). Hope that helps.
The benign form of virtue signalling is something like publicly mourning for a while after your spouse dies so other people understand you aren't a sociopath. The runaway form of it is jumping on your spouse's funeral pyre because it shows you are more devoted than anyone else. Or in this case burning up your company's profits on unnecessary taxpaying to show you are wealthy/socialist enough to do that.