Anonymous“What am I missing here?”
You are missing the rule that governs these cases!
The function of the antecedent in the main clause is irrelevant.
Choose the case of the relative pronoun (who / whom) on the basis of its function in the subordinate (i.e., relative) clause.
He (who) should be considered for this award.
Not,
*Him (whom) should be considered for this award.
CJ