Don’t be so facetious. What emergency bill costs hundreds of thousands? Millions - the vast, vast majority - of people don’t have that saved in case of an emergency.
Let’s take a real life example of someone I know. He owns 50% of a household name brand you’ve probably heard of even if you haven’t used. His share is worth £12m. To be worth £24m, a company is making £3m around EBITDA. That’s £2.25m after tax. Him and his co owner take about £200k in remuneration - so £1.85m profits left (and profits, not cash). A lot of this is reinvested into the business for growth, and some funds working capital as it’s not cash, and a business does need cash reserves to weather downturns in business etc and still meet its costs. There’s not buckets of cash in the company and so there isn’t really budget to increase their pay from the £200k they currently earn.
Of that £200k, they take home about £135k. You can find many, many, many threads on here about how after buying a house in the south east and paying for childcare, £135k doesn’t go very far - certainly not far enough to build hundreds of thousands of savings.
Now they’re being asked under a 2% wealth tax to pay £240k each. So that’s nearly 2 years of taken home pay. No one can afford that, so the company will have to pay them more so they can pay the tax. That’s £1.2m from the company - the same company that can’t afford to pay them more than £200k a year because it is investing for growth and employing more people. Growth our economy sorely needs.
So it’s not an option, to pay the wealth tax he really needs to sell the business. There’s many international buyers interested, most of whom I can guarantee won’t care as much about the UK employees as the current owners do and will do all they can to cut costs and increase profits (and probably not pay a wealth tax as they’re non UK buyers). The UK workers will see slower pay rises and generally less pay as a result. The owners would probably pay the wealth tax and then leave the UK, as with the £9 ish million they’ll have left after tax means they don’t have to stay in the UK, create jobs here and suffer from our abysmal infrastructure that won’t be fixed until their kids leave uni, if at all.
So well done, you’ve collected some tax but lost all the other benefits of that wealth being in the UK AND had a detrimental impact on the low and middle earner employees already suffering a cost of living crisis and they will be paying less tax on their lower earnings and lower spending. And probably decimating their chances of ever saving £100k, which you insist is a necessary emergency fund to survive as not-a-millionaire.
But maybe that’s what you want.