ah, well, I'll tell you the honest truth...my story...
I was raised to not look at money when determining who to date...so that's how I thought I should be. I dated a few guys who were either middle class or upper class (we were middle class, I thought...maybe a little upper, just didn't show it much) and I hated the fact that they felt that class had a major impact on whom they decided to date. Fact is, it seemed that I just couldn't deal with someone like that...although they had no problem with me.
Eventually, out of all the guys that I could have married, I married the poorest...he was raised poor and was poor when we met. I helped him get a better job, etc...I supported our home for many years...eventually, he did much better...we actually get along pretty well...our major issues in our relationship? MONEY! Yes, his family has always hated me and been jealous of what I had, how I grew up, how WE together lived thanks to me, etc...his ex-wife even more, of course, she was lower class and actually, a big loser...Everyday I realize more how much I've had to give up, how much our son has had to sacrifice because of this...and yes, I do love my husband...but if I had to do it all again, I can tell you that marriages are difficult enough without having the family jealous of you, how you live, how you were raised...it's as if we couldn't have anything nice without them attempting to take it from us, to ask us for stuff (they all just have babies and sit on their behinds), etc...and life is too short to have people like that in your life. I'm not saying that I need someone to support me, or that I want someone rich...but I think that our life would have been much easier if his family was at least as well off as mine, etc...as that jealousy, constant attempting to make us feel bad for living well, or worse, doing anything they could to take away from us has truly drained our relationship and we now have ended up with the choice of our son having no contact with ANYONE in his family to keep him away from the jealousy, etc...we can't have a dinner together and talk about a vacation without the snobby remarks, etc...and believe me, I am NOT a snob. I worked my behind off for 20yrs to have what I had...it's mostly gone thanks to the jealousy of his family and ex and of course, the fact that his crappy family never taught my husband how to balance a checkbook, how to have a decent life, etc...it's taken years for him to finally understand and we are now 42yrs old...the only reason I have remained is because he is very good to our son and our son loves him dearly...otherwise, the nightmare of his jealous family, ex and kid he has with his ex (who of course, lives better than us now because although her mom is a loser, the courts make him pay her as if she deserved it and not our son...of course, I SACRIFICED myself, my income to give him that better job, he would have never had that job if he had remained with the loser he was married to before...)...etc...
So, my advice, continue to do what you are doing. This does NOT mean you have to be mean to people who have less than you...honestly, as my husband, he is a very nice person...not his fault he had such crappy parents that never taught him how to balance a checkbook, etc...but just tell them you're not interested...
Good luck...sorry for being brutally honest...and anyone else who may be offended...but the more you have in common with how you were raised with your spouse/girlfriend, etc...the better your relationship will be...