I do think it is unfair to keep taxing those who earn higher salaries. We get taxed enough as it is.
You cant win really. My dh worked really hard building up his company, we paid high taxes and corporation tax. Then when we were fortunate enough to sell the company we had a whopping personal tax bill to pay as well.
When you dont have much money you cant afford to buy the nice things and live comfortably, but when you do have money (no matter how much) they try and find every way to get it from you.
Yes, we have a big house but we have the big bills that go with it. Yes we have nice cars but we have the bills to go with it... Fuel costs more, road tax costs more, car insurance costs more. But they are the choices we have made so we cant complain about it.
If we were still living our lives scraping through each month, wondering if we had enough money for the bills and food etc then I certainly wouldn't be begrudging those more fortunate than us.
Basically, you get penalised if you are at the lower end of the money scale because you can't afford many things, you spend your time worrying about affording to live but you also get penalised if you are at the higher end of the money scale because everyone thinks that you should be taxed more just because you are seen to be able to afford it.
It's a no win situation.