Lying is one thing.
Vegapunk can literally invade people's memories and store them in Punk Records. If he's forced to by the Gorosei to give up Kuma's memories, there is nothing Kuma or Vegapunk can do to resist that.
it never happen, since vegapunk also fu the government in secret by hiding kuma memory. while claiming all kuma memory erased.
also when you said dragon lucky he didn't kill kuma
the kuma, who been backing dragon up in his war. kuma doing all work... yeah this make dragon look worse.
his man expandable , calls them friends, but not really. and can easly say i will kill you.
if i don't see dragon making it as a joke in the panels.. but actually serious. this guy is scumbag imo who just uses people for his own gain.