Exactly BravePotato, unless you are Richard Branson or Bill Gates, there is always going to be someone richer than you.
But if you can afford any private school, skiing or other foreign holidays, and own a house, you are richer than most people in the UK and in turn, most people in the world.
Unless you have very high (necessary, not just because you fancy a flash place) housing costs, anyone on say £30k+ really is more well off than average and should feel grateful for that, rather than looking at a tiny minority of high profile very rich people and stamping their feet going 'it's so unfair, they have more than me'.
I earn £40k but DP earns minimum wage. Most of my colleagues earn more and have high earning partners, yet some often complain about how 'poor' they are, which is ridiculous.
We have very secure jobs and I am very grateful for that. We can afford to go abroad twice per year (Spain for a week, mid range hotel) but we don't buy a lot of the things that many people see as 'essential' like daily coffees and expensive bought lunches, beauty treatments, latest mobile phone packages, 'disposable' clothing, etc etc mainly because I think they are a waste of money.
It is very easy to spend hundreds of pounds per month on little treats like these, not thinking they are luxuries and then think you are skint, when you are really not. We can't afford naice hotels for example so would rather just be there for the experience, rather than paying a lot extra for nicer surroundings.
A couple of people have mentioned driving a seven year old car as an example of how 'not rich' they are. We'll I don't think a seven year old car is old, mine is six years old and it feels more like 'nearly new' and I expect to keep it for another five years or more.
Perhaps I should give classes in being happy with what you have and having modest wants
.