They're alike in that way; Ultra Magnus often performs his duties with zero expectations of gratitude or positive remarks. To receive either or both, he's a bit unsure of how to deal with it.

"I think that, perhaps for now, I should finish my reports." Or try to.

Work gives him a sense of control, something he feels he desperately wants.

"You're welcome to stay, of course, but it won't be terribly interesting watching me work."