My proposal is quite simply that everyone is paid enough to live comfortably and has economic security.
Ideal world, yes, of course. But you also have to factor in the unforeseen consequences.
Back in the noughties, "the state" was very generous with tax credits and housing benefits. The result was inflation. Particularly house price inflation driven by high rents being paid by the govt with little/no restriction, so landlords could basically keep putting up rents which the govt seemed happy to pay, thus causing house price inflation. Then, of course, because things were more expensive, people didn't see the benefit of their tax credits nor housing benefits.
You'd need some form of price fixing control if "the poor" were to benefit from increases in minimum wage or tax credits, etc. Otherwise the increased demand (from people having money in their pocket) would just drive up prices and they'd be no better off.