That interaction with Elysium had truly pissed him off. Even making him back off like that wasn't enough, because it was clear the man was still as arrogant as ever.
The only way Leonel would feel satisfied is if he truly made them suffer.
All of them.
The Variant Invalids tried to steal his wife right from under his nose.
The Celestial Embers had cooperated with the Owlans to try to steal his Life Tablet and Anastasia.
Minerva had tried to kill him more than once, humiliating him several times, and in the end, he could only let her get away because he didn't have the strength to stop Elysium.
The frustration was boiling over to the point he had almost returned to his old ways.
But it was fine.