It won't. It's only poorly paid because there's a power imbalance - the tradeoff is "do shit work for shit money, or starve to death". UBI removes the "or else

It won't. It's only poorly paid because there's a power imbalance - the tradeoff is "do shit work for shit money, or starve to death". UBI removes the "or else clause". Which will fundamentally shift how we pay for work - instead of overvaluing rare skills, we will value willingness to do the work that needs to get done. It doesn't necessarily lead to inflation because UBI doesn't automatically mean all jobs will pay more. There's a likelihood that many BS jobs will go away - i.e. nobody will want to be a bagging clerk in supermarkets, because you couldn't pay enough to make it worth people's effort without exceeding (vastly) the return that having bagging clerks produces. You'll still have people cleaning sewage lines, because civilization literally rests on that. It'll be a well-paid job suddenly. That's as intended, as far as I'm concerned.