We didn't see the secretary face, I personally think that she is one of the few affected by his death, possibly decided to keep a hard face at the funeral after realizing the pieces of shit attending it culd give her problems if she broke.
MC looked in her direction and thought she was a traitor too, but we didn't see her expression.
The guy sent to Siberia made a hill out of a moletop, it was just a punishment trip and it created a rumor of MC being a vendicative guy.
He have no proof about the bastard that killed him, revenge will be tricky.