I don't think this a left/right or liberal/conservative issue. People with high incomes of every political leaning think they deserve their high incomes and like to pay the rest as little as possible. For example there is no reason why rich tech companies can't pay their cleaning staff decent money other than not caring.

Over the last few years I have had several people with multi million dollar homes ask me to help with tech issues and they were the stingiest people I have ever met. Thank God I can tell them to f... off but a lot other people don't have the luxury of choice.