When Buffet goes and cries about how his secretary pays more in taxes then he does and that is wrong those tear are pure crocodile. He pays the taxes he does because he lobbied and loopholed and paid people to make sure it happens that way. He can put on a show because he knows that this will not change. He won't get hit with a higher bill. The people who work for him will. That will keep them from being able to go out and start up a company that might someday topple his empire.
Even the claim about the secretary is false. She pays a higher rate, because she’s earning wages, but he pays more taxes, albeit at a lower rate because they’re capital gains and not wages. The taxes she pays gives her less disposable income than she would otherwise have, but come to so little money it’s hardly worth the Treasury Department’s notice. But he’s already got accumulated wealth, so he doesn’t need any income at all for the foreseeable future. He just likes making money, and he knows he’ll always be on top because of the power that that money can buy, and his taxes come to a huge percentage of the federal take, even though he himself hardly notices it. So his secretary and he are not even comparable. Like apples and bowling balls.