There are so many misconceptions and assumptions here i don't know where to start.
Lets just say for example someone has worked hard all their life, and now have little to no pension at retirement. You think it's ok for the government as a reward for their lifelong dediction to not taking that holiday to not drink/smoke have those kids, work through their holiday enititement, not claim redundancy benefits when maybe out of work etc. Those people. You think they're fair game to have that 'wealth' ie money they've already been taxed on, now taken away from them for just being sensible and making good choices, possibly big sacrifices to not be a burden on society and more so, able to control their retirement with their own hard earned pot, their house to which they may sell, scale down and drawn some of that money for retirement?
If you think that's ok, we are worlds apart. I do not resent anyone being wealthy, apart from of course the gangsters and tyrants of this world. The rest arguably most have accumulated wealth by hard work and elements of sacrifice i mentioned above. No such thing as easy money in this world. Why should they give it up.
Remember also that top bracket you mention contribute most to the economy, without them, we are all screwed.
It's like being taxed on capital gains or passive income. You have invariably invested taxed earnings as opposed to spaffing it up the wall, and your reward is you have to give more of the money you already paid tax on to be retaxed again and given to people who invariably don't give a sh't and have just thrown in the towel to a benefit life. Its absurd.
For example, in my spare time i run something about giving back to the community, i wont give too much detail, but i do, i don't benefit hell it costs me but i do it. Arguably i should be given tax relief for being such a good citizen, imagine that, asking the taxman, for such a thing, he likely imply i was using it to avoid tax in some way, we are never given a break to just breathe, just a small break where you can earn your own money without having to give a large portion away. Yes thats right earn even more and you lose your allowance completely, how and who ever made up that rule? WHo approved it? I would guess somebody so 'rich' that would never affect them, they don't care.