I think is safe to assume that Malik's mind is a mess, I mean, despite him being as friendly with MC, and clearly having some moral still, he is far too emotional, he was gonna use a Planck Attack with Ella within Hex's dimension on a fit of rage, while Bernhardt thanked the Eye for left earth before using such attack, meaning that it would be devasting to the Planet, he also lighted up the warehouse in which Alexis was after Aglaecwif touched a nerve. And the way he refer to the voices in his head is 'Brothers/Sisters', he don't call anyone on HERO that, besides Henri and Bernhardt, this make me think that Malik's corruption or maybe a common mental illness make him hallucinate the voices of Early HERO members that died or people he knew as a thug before being recruited by M-Corp, I do like your point of it being regardless something caused by Glae, but I think is more on the line of her having shaked his beliefs, resulting in Malik abandoning Earth to search for Ancient Human planets that she mentioned, previous 'Cycles'