It's not class warfare for the very wealthy to pay at least as much, and a bit more, to the government through taxes as the lower and middle income taxpayers contribute. Many understand that they want to contribute a bit more to the society that provided the opportunities for them!

These very wealthy individuals get it!

http://givingpledge.org/#enter

Bill and Malinda Gates get it!
You can read the single page explainations for each of the very wealthy individuals by clicking on each name at the website above.  It's Very Interesting!