> Psychologically they'll believe they earned that 20% raise through hard work.
Well, it's not just that. They've been telling us for decades that wages are alternatively a direct reflection of the value of our labor to the company, or, a price set by the market, depending on which is cheaper for the corporations.
Kind of like when people say that UBI would simply instantly raise the price of all rent to match. Oh, really? The supply of rentable units will suddenly have decreased? The demand will suddenly have gone up? No? Odd that the "market set price" responded then.
Giving people cash would raise demand for rent and everything else, yes.