I think it's become so popular because it's true and someone who has more than enough money is actually admitting it and not in a 'I-have-so-much-money-haha' kind of way. She's also willing to pay the taxes meaning that she needs to pay the taxes that the rich need to pay, 'cause apparently, rich people don't pay enough taxes. I think this statement is just an opinion, all the insurance that she has and money - she just wants everyone to have enough. This