Yeah, a bit. They're both suffering from extremely traumatic events and seem to be dealing with it in very unhealthy ways. Nika seems to want to get better, though.
Nika can be a hateful prick, but he also cares about the few people that he cares about. Leia hasn't really shown that, outside one conversation about Katie in the new update. Leia treats everyone like shit. Nika doesn't treat Noji like shit at all.
Leia does seem to care, but because of the way she overcame William leaving her, she's can't show it like a normal person. Imo, the scheme she's pulling is clearly for the Zanes and their sake. But William leaving taught her to no one can be trusted, not even those you love and those who love you, so she's constantly in "gotta be a tough chick in this tough world" alway-on-defense-with-her-walls-up have-to-do-everything-myself mode.
She's sort of like those parents who run themselves ragged doing everything they can for their families, but they can't bring themselves to open up to them because they feel they have to be that "strong, unbreakable dad/mom", and end up lashing out at the family from being run so ragged and having all that pent up stress. They fuck it all up, when they're really just trying to support the ones they love.
At least thats my read of her.
I figure Leia thinks she's showing tough love to her family. That they should nut up and overcome their hurdles themselves, become strong. You can sorta see that in the girls at her club - its even in the name. In ancient Greece, the Aesculapian snake was used for medicine and healing rituals. Thats one of the things she's doing with the club - taking in girls who have potential, helping and fixing them up, and then building them up to be stronger and useful pawns.