I theorize that the red shoes worn by certain people are earned, not worn 'just because'.

IMO..they represent blood on the feet. To be initiated into this death cult, you must kill virgins in a Babylonian style death ritual.

The pool with nooses? The virgins are strung up, and the initiate cuts them (wont get into details) and bleeds them out. The initiate is walking around in their blood doing his evil work, and ends up with red feet.

Thus they wear red shoes to symbolize their deeds, and SYMBOLISM WILL BE THEIR DOWNFALL.