From each according to their ability, to each according to their needs.
Btw I'm not on a salary as high as £150K, but I will say that I'm happy to pay what I can afford. I want to live in a civilised society - where everyone, including those less financially privileged, have access to life's necessities. I want a society with good public services, a supportive benefits safety net, more council housing, and job and training opportunities.
And of course that ends up paying for itself. Because timely access to essential public services, affordable and decent housing, good healthcare, etc, means fewer people will need support.
False economy is never the answer.
Also, taxes (which everyone pays - working or not) aren't the only contribution to society. Aside from there being more than financial contribution, there's indirect financial contributions - that boost the economy. Spending in shops, having tradespeople do work on your home etc.
Oh, and the people on £25K are helping keep the businesses that employ them afloat. The CEOs on £150K (or more) need the lower paid workers to keep their businesses going and their larger income coming in.