HMRC have been steadily closing the loophole by reducing the amount of dividends you can take before paying tax on them which I suppose is only fair
You are mistaken.
In fact, the government of the United Kingdom has recently been reducing the loophole by reducing the amount of dividends you can take before paying tax on them
The £5,000 tax-free dividend allowance which the government introduced in 2016 was blatantly unfair and gave preferential treatment to the rich.
For example, a person owning £200,000 worth of shares in a company with a dividend yield of 2.5% would pay no tax on the income. Even a company with a yield of 4% could own £125,000 and pay no tax on his dividends.
This wealthy person also has a tax-free allowance of (currently) £12,000 a year on profits made by selling some of his shares after the price has risen.
This is on top of the personal allowance. No National Insurance is charged on Dividend income, no matter how wealthy you are.
These benefits are not restricted to people who are performing a public service or adding to the quality and morality of our nation.
There is no such generosity to the poor or disabled.
Tax cuts for the rich are as necessary as free doughnuts for the obese.