When companies make more profits they pay more taxes. They invest more, which means they expand and take on more employees. who are therefore not going to starve and who will also pay taxes. Companies making profits also attract more capital for investment, which means money flows into the UK and into the stock market, which helps the county's economy, and which helps the pension investments that employees who are prudent but not wealthy have been making towards their retirement costs.Many people will have to make a choice between heating or eating next winter, while energy companies are making more money than they know what to with. If you think that we're not heading towards more environmental disasters, then you haven't been paying attention.
Its hard to see a way from what you're saying about capitalism towards a prosperous national economy.
Again, the question has to be, who do you think pays for the NHS?