I think Buffet is hyper sensitive in regard to his wealth; it's fairly easy to play the 'greedy Capitalist' card on him. For most of the power heavyweights...what matters most, is how they are PERCEIVED in the minds of the populous. Status, ego, personal self-esteem...even one's ultimate faith/belief in their own relative goodness. There is a think line between altruism and truism, as it relates to the competing ideologies of individual merit (Capitalism), and individual need (Marxism), I.e., 'social justice' as opposed to social Darwinism.
One thing Buffet would admit, if cornered, would be that he could NEVER apply Obama's economic principles, to accumulate the fortune and power that he has. Solar and wind power, morally and practically (free market) corrupt allocation of the citizen's tax money to Union cronies who fund his campaign, and who extort (by violence, if necessary) and enjoy benefits and pay far above what they deserve.
Buffet is an old man...can't stand the heat anymore. And I figure that - facing his death - he'll be inclined to err on the side of merciful caution. Just in case he faces a 'judge', after his last breath.
Bottom line...yeah...he's a useful idiot. Or at least in effect, if not in spirit. Like Obama is a Marxist...not in name or spirit; but like Van Jones says...both "drop the radical means for the radical ends". And just that like ignorant people don't think they are ignorant, useful idiots don't think they are idiots. "There is a way that seemeth right unto man, but the end thereof is destruction" (Biblical). A ton of useful idiots are doing the right thing, according to their conscience and feelings...but ignoring the empirical effects.
Good luck buddy. Looking forward to some spirited debate.