Because we live in a faith-based monetary system. We need money to eat and sleep inside of a house. Desire and wanting to do jobs have nothing to do with that. It necessitates.

If we lived in a Star Trek utopian society where money was no longer the driving force of employment, there would still be jobs. There would even still be jobs that people don't want to do and they would still do them out of a sense of responsibility or even necessity.

The entirety of your original statement in this post is a non-sequitur.

I can love what I do as much as I want. But I'm going to become homeless and die if I don't get paid.

Lots of businesses use your logic to underpay people, like in the games industry and with Zoo Keepers, but at the end of the day they need something to stop them from dying

I love my job...