At first, the Clans would keep out of the minutiae of local supply chains, unless there was an immediate need for the war effort. IIRC, Comstar began working with the Clans rather quickly to smooth over the transition of conquered worlds. That said, without such 'assistance', the normal Clan True-born saw invalids, elderly, and the mentally ill as wastes of resources. Hospitals to 'repair' common laborers would stay in supply provided those injured would return to work. Those injured who would never return to work, would not receive care. Prisons would most likely find their inmates eliminated if said inmates could not be rehabilitated to Clan standards, again saving resources. Harsh, but in the Homeworlds, none of those folks would be tolerated, especially by the Warrior Caste.