some men automatically seem threatened by me at times just because I'm an engineer. It hasn't happened often but I have met men that are threatened by a woman who is smart or has a good career. Some guy might be doing that because he thinks someone like you want someone with more education, money, whatever.
It doesn't have to be he is threatened. It could be he is thinking the woman is looking for more than he has to offer, time, money, social status, or whatever.
I don't look at Corvetts because I don't want to be obligated to what it cost to operate a car like that.