Nothing wrong with being rich. I certainly consider myself 'comfortable' compared to a great proportion of the UK. Even though I'm within the Basic Tax rate, I still earn more than 90% of the population.
Yes, there's a massive skew of wealth in the UK. 6th in terms of total GDP, but something like 26th in terms of GDP/head. There are an awful lot of people out there working for very low wages, and yet there are apparently a million or more vacancies. Seems to me that demand is greater than supply in the labour market currently, but employers don't seem prepared to increase wages to attract staff.