Poor Victor is not evil, just socially incompetent
Like, how was it written on Ekko's lore? Both Viktor and Jayce show great interest in his time tech.
So it's kinda like that:
"Oh this technology is amazing. I shall observe and study it, so I can steal, uhm, I mean RE-BUILD it for the potential it could have for the city, no, for the WORLD!"
"Oh this technology is amazing! Only a true genius could come up with something like that - a genius who would truly understand the goals of my Glorious Evolution! It's like a potential... friend? I NEED TO TALK WITH HIM! Wait... how does one make friends? thinks about this for several minutes Ah whatever, the most efficient approach should be enough. HENCHMEN, GO OUT AND BRING ME THAT BOY! ALIVE!"
I think it should be a running gag that Viktor is not actually evil, but misunderstandings like that are the reason everyone is scared of him.