Superficial comparisons with the old soviet system of ´political officers´are indeed misleading. Even back in the 50's PLA was no carbon copy of the Soviet Army but unfourtunately prejudices prove sometimes more robust than the simple truth.
The first thing Mao had in his mind when he established commissioner system in PLA, was to prevent any abusing of soldiers by their commanders, which widely happened in KMT troops. That's his first and one of the most important goal for this system, and explained why PLA had much strong combat capability than KMT troops.
I think Chinese commissioner system works much better than west or US troop system. No idea in US army if you're abused by you commander or fellow soldiers, how or to whom will you appeal? If you appeal to the higher level, they usually don't trust you but your commander, and nobody can verify it. A commissioner with the same level of commander can effectively prevent or reduce that kind of abusing.
Last edited: