Working hard is not a guarantee that you're going to get everything you want.  Nor is not getting everything you want always evidence that the other person somehow cheated or got an unfair advantage.  Some students get easy As, some fight every second for them; some struggle for Cs, and some figure a C is a passing grade and good enough.

How do you know these people who didn't get in really worked harder, got better grades, were more qualified, than the ones who got into the program in the given session?  Do you know them all, the ones who got in, the ones who didn't?  Know what they've done, how they've struggled for their goal? 

Our medical programs don't take everybody, that's a fact.  A lot of people who might make great medical providers don't get in.  But giving qualified students the boot because they aren't white males whose families came with the Mayflower isn't the fix.