I know I'm going to catch crap for saying this but I'll give you my perspective based on my dating experience, people I've know how are married like that, and talking to and "being with" women you would swear are gold diggers First, I would not have a problem at all if she marrried for his wealth. Why? Cause most women in general, especially the most beautiful ones, marry men who are either extreme alpha males or are already rich. All the women I've talked to that are married to rich guys will tell me straight up that they were attracted to his wealth because it's a sign of security for her and if they have kids they will have a brighter future. That makes complete sense to me. The most beautiful women want to marry someone that is or has signs of becoming very successful. I can't dog on them for that. That's why I've met 20 something year old women , who are drop dead gorgeous, marry these 70 or 80 year old doctors, lawyers, or accountants. Now are they gold diggers, yes by all means. But I can't blame them on that, Most guys want to get the most beautiful women they can at whatever stairs they are at and if they can get them, good on them. I can tell you that as soon as word got around that I bought a Mercedes Benz, a lot of the daughters of lawyers and doctors started paying attention to me and yeah I casually dated them. Most were pretty nice but I never let them get to my wallet.
Now I have to also say that most of the women I met like that were very nice and loved their husbands to death cause they respected them if the husband was the alpha in the house. If her husband was a beta or weak male with a lot of money, she admired to marrying for money but was unhappy and they were most likely to have affairs and want to divorce him. Now I can't say what kind of relationship Filthy and his wife have but if she's stuck with him this long she must really love and respect him based on how he acts at home when we don't see him. If she was a gold digger that didn't love him then she would have done what I've seen countless times. Marry him for a few years, divorce him and take half his money in alimony and would have tried to marry another rich colt while she was young and still had her looks. So if she's with him this long and had a kid, I believe she really loves him.
As far as the treatment of Diamond Tiara. There seems to be a conflict of parenting. Remember how Filthy made her participatewith the other fillies after she made fun of Granny Smith for being old? Clearly he respects others and is trying to teach her a lesson there, but her mother is instilling this sense of entitlement. My guess is she is wanting Diamond Tiara to marry upward to wealth like she did and wants her to act like people of wealth act to someday attract a wealthy stallion when she's older. Can't dog on her for that really. Who would want their child to go from a life of luxury to scraping and struggling to make a living? I wouldn't. Now unfortunately, this attitude Diamond Tiara is getting is making her spoiled and angry. I'm guessing her mother should tone down the entitlement attitude cause I can tell you right now that most rich guys will not put up with an attitude like that and it's a big red flag to stay away from women like that. Unless she gets a little cuck beta male with money then may do the same thing as stated above.
Just my opinion based on hard life experience. Like it or not, don't care but that's the real world we live in.