I think the SPFL, previously the SPL, was an artificial construct set up with the specific aim of furthering the interests of two teams only.
These two teams cannot lose within this system. One of them even went bankrupt but here we are back in the same shambles again. The bankruptcy did not interrupt the corruption at all.
All sorts of rule changes were made when the huns were in the championship, to help them only. We also had TV companies covering 3rd division football at one point ffs.
The tail wags the dog in Scottish football.