It doesn't seem to have entered Winstone's head that if the government closed the tax loopholes allowing multi-million dollar firms like Google, Amazon and Starbucks to avoid paying tax on their assets there'd be more cash available to the Treasury.
In reality these huge companies are guilty of raping the country with their non-payment of tax.
TBF to him, that wasn't what he was talking about - he was talking about paying a huge percentage of tax (regardless of original income) and not seeing much return for it.
The last time I checked, actors (regardless of how many tricks they have) do not make taxation policies, either for companies or for the people. That is down to the government in power.
The one he was, quite rightly, complaining about.