@Fagin2021. it is trickier than it looks actually.
You can't pick out one hedge fund manager for a tax break. If you're creating a tax break it will benefit multiple people.
I suspected, and you've now confirmed, that you're talking about the tax simplification plan Liz Truss had to remove the 45% tax bracket and charge all higher earners at 40%. But those paying 45% marginal rates are not just hedge fund managers, it includes some doctors, headteachers, small business owners!
The "buy a few Ferrari or pad in Mayfair" sounds like a typical Labour politics of envy.
The sensible approach with any proposed tax change is to examine the net effect of the change. Would rich people benefit more? In this case, obviously. But is that a good reason on its own to not implement that change (whatever the change happens to be)?
I think one needs to step back and examine the net effect of that change. We need to estimate the extent to which the tax reduction will result in higher consumer spending (even if it's with buying Ferraris - that's economic activity that pays tax, supports employment etc

). And higher employment. How much of that tax cut, putting more money in the hands of rich people, will result in investment, creation of new businesses? To what extent will these rich people use that to invest in riskier but up and coming technologies - our robotics, biosciences etc? What negative effects will it likely have in, for example, incentivising rich people to invest more in property and push up property prices?
The jury is out on whether a simplification of income tax by removing the top bracket would be a net good or net evil. There is no clear answer on that.
But we are sure that using emotive language of "hedge fund managers" and "Ferraris" displays either a lack of understanding of the issues involved or a genuine desire to whip up the masses (who don't have Ferraris).