You are looking at it from a wrong prospective: It is not about deserving it but rather how good the premise of what you are offering is and, should that be good, all the fans that can afford it will want to pitch something to help, to give their contribute individually, like "Cool idea, I like it, here's a coffee!"
Some people may do it for the tiers, to get builds, manuals, and so on as soon as possible or are simply interested in the game developing side of things or simply want to know what is going on (assuming there are weekly updates like most of them do).
I may be wrong but that is what I have personally experienced at least: I had a sucky project idea with even worse art and despite updating it regularly I only have 1 patreon: The same person for months which at this point became my hero, basically.
Whereas I have seen patreon pages that were not updated since November with a premise and art better than mine (Good Girl Gone bad style of games) which to this day have a lot more patreons than me (heck, even the scammer miagamehouse at their worst had more patreons than me, and they surely did not deserve it
).
Putting all that aside, even if your prospective had been right, that does not mean you were right as you can't judge who deserves what... Most of them are not solo but work in teams, they pay for their art, for their animators, for voice acting... And those things can be pretty expensive, not to mention that the money you see on patreon aren't 100% what the people actually get.