Kimblee and Domri seemed to have... not really hit it off but something happened I think? He's not interested in philosophy but if anything starts blowing up he'll be all over that like white on rice. Actually, at some point (probably when he has Pokémon with levels closer to 100 than 1) he'll be celebrating Rauck-Chauv, which basically amounts to running around smashing everything in the middle of some other holiday's celebrations: "Rauck-Chauv's like a holiday! Only it isn't on the calendars, and instead of dancing you knock people flat, and instead of giving gifts you break stuff." Telling him to break something that Team Rocket wanted broken wouldn't work, because Domri doesn't take orders from anyone who can't beat him into submission, but I could see someone like Kimblee "aiming" him at a particular time and place and letting him loose to have his fun.

As for Ishimaru, so far it looks like Domri's another person who confuses him. XD