@Equivalent-Ambition
Because that's not often how it is in real-life either.
While their relationship could be considered underdeveloped, that doesn't mean Andrew Milton is void of character or completely eliminate his purpose as a character, for that matter.
Personally, it always struck me as similar to the fact that Anthony Comstock inspired the likes of J. Edgar Hoover with his surveillance methods through his abuse of authority, which the latter expanded to a remarkably larger scale in his eventual career as Director of the Federal Bureau of Investigation.