I really do not know where to begin.
Yes, biologically, sex is to make babies. But culturally, there is a very strong bias globally that men are entitled to such pleasure, women are not (to the point that some cultures cut away the clitoris to try to keep women faithful to their spouse). I have met men who thought they were enlightened, new age men because of their attitude "I do not mind if you enjoy the ride, honey". These men have no clue. None. If he doesn't get it that making sure I enjoy it is his job, I have zero reason to service the selfish, disrespectful, clueless asshole. If it is my job to make sure I enjoy it, I can do that without the extra work of servicing him or the exposure to risk of pregnancy and disease. It's called masturbation. I do not need a man's company for that, thank you.
Buying a car to impress a lady is not about what she wants. It is about what you want. Most women do not have orgasms because they saw a nice car. The point of such activities is rooted in the fact that most heterosexual relationships involve some degree of a man buying his way into a woman's bed. That makes her a servant. He who has the gold makes the rules. Unless you bought the car as a gift for her, it isn't even a generous thing to do. It is merely bragging that you can afford to buy your way into her bed. And women are kind of stupid to go along with that paradigm. The typical outcome is that she becomes his maid and property, not some pampered person of privilege.
But since women are the ones that get pregnant, that paradigm isn't going to go away any time soon. The nuclear family with male breadwinner model works pretty well on the whole and beats the hell out of the often hostile American model of women's lib which declares "I don't need a man!" Most women want babies. A baby is a big burden. The single parent thing is an extremely hard row to hoe. But planning for the fact that sex leads to babies, at which point you will be better off if the father makes enough money to support a family, in no way makes that about her sexual gratification.
I have talked to plenty of people over the years and read plenty of books and articles on human sexuality. An awful lot of people express the idea that it is perfectly okay if she doesn't orgasm every time, women just aren't biologically the same as men, blah blah blah, it is reasonanle for him to get his anyway. And it is true, we are different, biologically. But the big difference is that women are far more capable of being multiorgasmic than men are. The degree to which it is assumed that sex is primarily or solely for male pleasure is pretty rampant. There is zero biological reason to frame it that way.
I am also tired and should probably drop out of this conversation. I have spent years backpedaling from a pattern of being a loudmouthed brassy broad and getting lynched for it. It isn't a hobby I care to resume.