Well , i think it would be imbalanced. Both parties should be able to bring something significant to the table. The rosy feeling of love or attraction is not enough, to calm the storms that will result from this match.

One would definitely act resentful like you pointed out, although their people who go into this sort of marriages with that already in mind. People who would love to look significant amd controlling, it happens all the time.

Whether it is ethical or not, of course not. There is a limit to which humans can be pushed, simple hooke's law.