It's not the fault of the ultra rich that politicians have no backbone and don't increase dividend tax and it's also not the fault of the ultra rich that billions of tax revenue go to the military industrial complex while the poor sleep in a box.
You realize that the REASON they're spineless is because politics in the US is a money game, right?
Until VERY recently, whoever had the most money (ie, corporate donations) was basically guaranteed to win the election. Ergo, big business and the rich realized they can just donate to people who support their views and will be pliable to their demands, and as a result both parties wound up running almost exclusively running people who catered exclusively to the whim of big business.
Thus, them not putting a dividends tax, and them forking over trillions to corporations in unconditional bailouts, supporting the military industrial complex, etc etc etc.
It's not that politicians are spineless cowards (although...they ARE), it's because big business (run BY ultra wealthy people who want to be even wealthier), are able to more or less buy elections with absurd amounts of corporate donations either directly or through super pacs.
And the mainstream media, also large rich corporations, plays along with this and is frequently SHOCKED when a bright young person with a bold vision and popular on the ground support defeats someone with more money who has been there longer.