I think it's time we stop giving a pass to those who'd advocate taxation for all yet fail to practice it voluntarily by themselves. Billionaire Mark Cuban lambasted tax evaders for failing to contribute their dues to the "system". Are we seriously to believe that a small army of accountants don't work on behalf of Mark to minimize his own tax obligations?
Do not let the morally conceited go without living their own values. Let them see the weakness of their own convictions.