How is wanting to get paid and loving the game mutual exclusive. They are more part of the community than 99% of the community, you make it sound like it's easy, they have invested their own time and skills to make mods that people are willing to pay for.

Stop being so judgemental, you don't know them or why they are developing mods. Maybe they want to make a living or extra money by working on something they like. You don't have to buy the mods they develop if you don't like paying for mods or if it goes against your own principals. They aren't trying to force you to buy their mods. I myself never play games with mods, because it's a hassle and doesn't make my gaming experience any better.