It's a well known fact that Superman is an asshole.
Right?
Kal-El sends Clark Kent Look-a-like Robots out to the polls to vote for him.
On one hand this is illegal, but on the other, if one robot who is aware of all Clark's positions, is solely dedicated to just voting, and giving a few less fucks than expected about the rise of evil, that might mean that Clark votes in every election that he is eligible for, since that is this robots only reasons for being "alive".
I vote, therefore I am.
Wayne bankrolls the JLA?
You don't find satellites and moon bases at the bottom of crackerjack boxes.
Because of alien tech, orbital surveillance, and just having boots on the ground before the super villain pushes a button of doom, Bruce is aware of major disasters and super villain assaults before the public, and the stock exchange.
Stock manipulation is a crime.
Bruce could make a lot of money from knowing that a city is going to flood, or an evil CEO is about to be outed as an Alien, 5 minutes before every one else in the world does