Well probably time to close this conversation down given that Liz and Kwasi have heard the writing on the wall and today removed the tax cut.
I agree with some OPs that, life isn't inherently fair, which is why, whatever your faith or no-faith, as a society it is ethically incumbent on us to share with our poorest. (A Civilization is Measured by How It Treats Its Weakest Members - Ghandi)
There is an incredibly flawed presumption that we live in a meritocracy where people deserve what they get, that rich people got there entirely through endeavour, and poor people dont work hard enough or are too stupid. Really disappointing to see this angry trope repeated here. Whether its a council estate in brixton or a million people in a shanty town in Delhi this is just rubbish: they're all just dumb and lazy right?
As to discouraging enterprise, significant research indicates that successful entrepreneurs are not primarily motivated by £ or financial reward or power, its rather about seeing an idea and enjoying making it happen/be used. It often makes no difference to them whether they earn £250K or £250m.
Yes we live in a global system, and yes that makes it harder to achieve fairness and kindness. However trickle down economics has been shown to be completely ineffective, as the massively increasing world and UK wealth gap clearly shows...and yes, ultimately we need global institutions to police this.
If people want to leave the UK to earn more than £250K then frankly let them, absolutely no one is indispensible, and there are at least hundreds if not thousands of intelligent people in the UK who could do any of those jobs well.
The majority of super-rich also readily acknowledge that "Success" in business is primarily based on luck, i.e. being in the right place at the right time.
Financial success is also more often than not based on ruthlessness and exploitation. Even the often cited-as-saintly Bill Gates is a ruthless business man. Its quite nice that some rich people aim to give all their money away, but its so very obviously immoral that they were able to earn such wealth in the first place! And remember POVERTY is the at the root of almost all conflicts and wars, so even out of self interest everyone should agree to eradicate it.
Finally, finally..."If you suffered in life, and want people to suffer as you did because you turned out 'fine', then you are not in fact... 'fine'