I, for one, am all for sorting PRS competitors by income levels! As a college student my income is pretty low (I make about $10,000 over the summer and $5,000 throughout the school months), but I have enough scholarships and support (I can live with relatives) to be able to put much of that money towards my hobbies like shooting. I've got a similar rifle and gear setup to many of the "rich" competitors (full custom Impact Precision build, all the bags I feel I need), but could be competing against those who make similarly small amounts of money but have a lot less discretionary spending ability.
On a serious note though, this is a pretty terrible idea. Are we going to start forcing everyone to release their tax returns to shoot in PRS matches?
Gear can be helpful, but anyone can put together or buy a rifle that's accurate enough for around $1,000. If you're really on a tight budget you can even make do with a sub-$500 gun like a Savage 10-T or an AICS Ruger American Predator, though they'll be less than ideal. As far as bags, tripods, and other gear goes - I've never been to a match where people within a squad weren't willing to loan out bags and other equipment to any shooter in need. The jersey shooters don't really get much advantage from their fancy RRS tripod over other competitors if they're willing to allow others to use the same tripod on the same stages as they do, and I haven't yet been squadded with someone who wasn't willing to help out.
Ultimately I think cultivating a friendly, sharing, and helpful culture like this is the best and easiest way to approach this issue. To do my part I always make sure to tell my entire squad that if they ever want to use a piece of my gear they're more than welcome to do so. I also am more than happy to load up some extra ammo so that anyone at a match can use my rifle if they have problems with their own or can't afford it, so long as they just squad with me. If people have issues with their DOPE I'll load them up a profile in my Kestrel so they can get some accurate baseline information, and on the zero range I'll loan out my chronograph to anyone who doesn't know their speeds.
I'm not saying that everyone needs to do this type of thing, just that it's a common thing in the locale where I shoot and it's what made it possible for me to get into the sport. I went out to a couple local matches and spent nearly an entire year borrowing bags, bumming wind readings from others' Kestrels, and seeking out advice for when I would eventually put together my first "real" rifle build. The super helpful shooters I met along the way were key to me enjoying the sport and being able to afford it as I built up my own collection. If enough people go out of their way in this fashion, I think a lot of the perceived issues about some shooters having gear that others don't will go away.