Sure, lock it to one bid per FC. Then, when your active FC loses to a solo FC, you can come back here and complain about all solo FCs being sub farms and RMT and that you never see your neighbors in the wards! Infinite complaining generator!

There's no real good justification for active FCs being equally weighted. You could certainly argue that they should lose some proportion of their bid money, but ultimately it's clear that SE's goal was to maximize the amount of people who have access to A House, one way or another.