... it doesn't seem appropriate to extend such a right universally and it would inevitably be (ab) used to some degree by more well heeled prospective applicants as primarily a way of securing residence in the country even if they aren't utilising an explicitly fraudent course or entry exam.
Despite agreeing that people shouldn't be able to buy themselves extra rights to citizenship (They actually can, you just have to spend a LOT), the unfettered capitalist in me can't help but think that wealthy young individuals in mediocre jobs (if they're unemployed they don't need a visa) would be ideal for the economy. Pumping cash into the system, probably don't need state healthcare, education, pension..