Greetings
If there is a universal structure whereby matter is arranged much like we observe with Saturn and its rings (ie a central sphere surrounded by a two dimensional plane), and if that plane is then surrounded by another sphere/boundary (ie as the Oort Cloud indicates our solar system is, or Gravitational Lensing suggests galaxies are), then is Dark Matter not a measure of this structure? Which is neglected when measuring individual stars, solar systems, galaxies, etc.
Dark Matter been comparable in this situation to, someone identifying a proton but been unaware that it exists within a nucleus, and then discovering a quantity of unidentifiable mass around that proton, which turns out to be none other than the strong nuclear force.