Wagner is volunteers mainly from among the former prisoners. I don’t care what they believe and whether they believe in anything at all, I am of the opinion that the exchange of Wagnerites for Ukrainians, which has been taking place in the Artyomovsk direction for several months during fierce street battles, is beneficial for Russia and unprofitable for Ukraine.
Looks to me as though Russia plans to integrate into the federation all the land they've gained control of to date, and a certain amount more, and a high priority strategic objective in such a case would be to not alienate the local populations. Ergo, the contracts with Wagner PMC would be very clear on this, and if the organization is well run the behavior of the personnel would be reflective of it. I pay pretty close attention and have yet to see convincing evidence of widespread 'misbehavior' on the part of the Wagner mercs toward civilians. Just the opposite in fact...although they can be pretty hard on their own in instances where an individual deviates from expectations.
Speaking of the sledgehammer incident, it seems almost certain that the Ukroids simply drugged and sold the defector back to Wagner. Exactly what I would expect from the ZioNazis. I wonder how much they got for him? Of course I also wonder if the whole thing wasn't scripted.
Anyway, if Wagner is used in the Western parts of Ukraine which is to either be denazaified and abandoned by Russia, or given as-is to the Romanians and Poles, I would expect them to act a lot more like your average run-of-the-mill mercenaries.