I don't think this is quite how the world works. The reason people need to work to survive is because we can't survive if everyone stopped working. We have to make people work under threat of homelessness because if we didn't there is too great a risk they wouldn't work at all and that would eventually mean the collapse of society. How many people would quit their job tomorrow if they won the lottery? Sure some would find work doing something they preferred, but not all of them, and often the thing they prefer doing is not the job that actually needs doing the most. If it's something they even are good at. Loads of people would love to be an actor, but how many actually have both the talent and the skills needed to do that?

In a society where most people actually don't need to work because most work can be handled by machines without significant negative consequences things would change to be very different. People like to think rich people or politicians or kings control the world by themselves but the reality is there are always limits on what they can actually do. If you dick around too much even in an absolute monarchy you will be overthrown one way or another. Typically by your own military, underlings, or family, sometimes by revolution or insurrection. The same thing applies today to liberal democracy. In fact it applies even more so. Anyone who tried to kill off the working class as a whole would find themselves very quickly dead or dethroned one way or another.