This is more of an Arabian and Asian Culture, right? Womens won't have as much right as men do within the Arabian/Asian culture. For example in Saudi Arabia womens can't drive cars, only their husbands or partner or a male sibling could do the driving for them, its quite restrictive as oppose to the western culture. Females under those cultures are taught to be very submissive to their male counterparts and to not blow their ego's away.
As for a male worrying about their female counterparts being a lot more qualified than they are then there egos will be blown away and destroyed. We all know that men have bigger ego's than women's and the ego men have are very sensitive as oppose to their female counterparts, and your mum is right about 'men not being with a female partner that are a lot more qualified than they are'.
Don't worry about it to much

, your living in a western society, so women in western cultures have way more rights than the womens that are in ethnic cultures or different backgrounds, and that are living outside of e.g. Aus, Nz, UK, USA and Canada-Western areas. You may have encountered with those 'guys whom wish to supress an independant womens life'-those guys are equivalent to being a complete jerk, but dont worry about it
there will be great guys out there that wants to be with you, it wouldn't matter if there qualified as you or not thats only if they are truly in love with you