While personally I don't think anyone's work can be worth billions a year, I don't think people necessarily have a problem with the dollar amount of money that the wealthy have. In my view it's the feeling of impotence and lack of agency people feel. If you work a normal job that most people would expect to work their whole lives you feel powerless for the most part. Your only option is to plug away for an indeterminate amount of time until you retire (?) And it's not guaranteed you'll work there forever as the lifespan of most jobs has shrunk.

It leaves a paternalistic relationship between the business and the average worker. They don't get to feel like they're interfacing with the labor market, they're at the will of their employer. They should be grateful that your employer provides healthcare otherwise they might actually die. Maybe they should open a GoFundMe if they can't afford it. They should respect the patronage of private donations and privately funded grants your city benefits from.

The reason why universal programs are attractive is because they give the average person a sense of agency. Because they're universal they aren't a "handout," they're part of what it means to interact with society. Everyone pays in and everyone gets paid out. But if they're not universal they quickly become handouts for the poor instead of features of society.