I am shorter than my wife!

At first instance, well it seems true, but not exactly. To be precise, I am just half an inch taller than her. I possess an average Indian male height (read 172 cms) and she possesses somewhat at the taller side of average Indian woman height (read 170 cms), and as per the women go, they always seem taller, thank God my wife does not wear high heels (or I would have been beaten to death by now by the criticisms, which I obviously claim not to believe). But the truth is, I have been made aware and conscious of the shorter side of me, that is, my height, which, I can confirm, I have believed I was decent vertically till I got married.
The first embarrassment came with my sis-in-law, when right after the marriage she came to the hotel room and asked both of us to stand to comparison, of course I flushed (red not pink) and said I am shorter and I don't have any problem with it. Then all those questions which followed from people who saw the marriage snaps (I wondered what happened to the extra heels I paid for my new shoes?). Also, my wife's friend, who happened to ask "Why I took so much time to confirm" while she (my wife) was confident on me as an alliance, and just had some doubts about my height. Huh, the question actually came with an information, a knowledge. Doubt? Don't I look how tall am I? What's there to doubt about it?
Anyways, now I wonder, why a man should be taller than his wife? Where did it start and what is the valid rationale behind it? All I can think is a physical compatibility reason (but isn't length insignificant on x-axis??I suppose only in missionary position, all others might be a problem). Is it stage fitting (those who don't know, its just a term which describes how people look collectively when they stand side by side)? If yes, then from where did the convention of a guy being taller than gal come to make them look better together? I just read, few days back in a news paper article, that, girls do not marry guys who are shorter, vertically, financially or socially than them. Isn't it hypocrisy on their part? They want to be powerful, reckon with respect(??), be in controlling position (anybody (guy or gal) who has a female boss can confirm), but still they want a spouse who's more than them? But why, I ask why? Today the girls are saying they are no less, but then why are they looking out for men who make them less, at least in visible ways? I, being a guy, will not mind at all, if my wife is taller than me, earns more bucks or a better social status than me; I would rather appreciate and be proud of her. I suppose women are still bleak about their "equality" agenda, when at times they seek it, and when at times they want to be privileged and when at times they seek their partners to be better than them. But still I must agree to myself that I don't know, what all is this?
Yes for all those curious people out there, I am not shorter than my wife but ya I don't mind even if I was (I would have refrained myself from different positions, and that's it).