offcourse you can be jealous...
But!
If they make like a biljion dollars a year, you could never compete with them in gear. So don't worry bout that too much. Theres nothing you can do about it.
Now if youre working only in the vacations (like me) you should save up some money to buy decent gear. (ive been playing for 2.5 years on a €170 bass that isnt the best one out there, but was never jealous) in a few weeks im going to get my Dean edgehammer v!

which is totally going to own
O,... another thing... if you COULD buy anything you want... you might get "bored" or something, I find it is best to have the desire to get better equip and grow along in techique along the proces. It's much more fun imho.
Like a dutch saying:
"het hebben van de zaak, is het einde van't vermaak"
which means something like
"when you got all the stuff you want/need, youre "done" with it" (rougly translated)
so.... admire youre "crappy" gear... if you have crappy
