I suspect this will probably derail quite quickly, but here goes...
I think most people draw a distinction between those in paid employment and those who take payment in shares and bonuses, etc. When people talk about the rich not paying tax, they are often in mind of big corporations rather than salaried individuals, and the shareholders of the former have found many perfectly legal but arguably immoral ways around paying tax on some of their income.
Sometimes, this means that the person earning 150,000 a year (nearly 6x more than the average salary in the UK and 7x more than a typical salary) is unfairly lumped in with the likes of Amazon, Google and Vodafone in the eyes of some people. Not fair, I agree.
However, when you look at indirect taxes (e.g. VAT) and add those to people's tax spend as a proportion of salary, the picture is very different and the poorer of society actually lose more of their income in tax than the richer.
It's a complicated picture, with some people at either end of the spectrum suffering from unfair prejudices. Ultimately, it comes down to your own personal feelings on the merits of wealth redistribution.
Personally, while I think hard work and talent should be rewarded, it's a myth to think we live in a proper meritocracy. It remains the case that your socio-economic group is the biggest influence on your future earning potential. Networking counts. Some people break out of those confines and good for them, but they are very much a minority. Also, not everything of monetary value is 'good', whereas lots of 'good' things have little or no monetary value (e.g. caring for the elderly). I find it reprehensible that some can have huge bonuses for selling stuff while people are queuing for food from foodbanks simply because they have a partner who needs a level of care that prevents them from working. With that in mind, why is it wrong that those who have most contribute most?