The Monarch: "OH! DICK MOVE!"

[David T. Cole]

I've yet to think to myself, "that episode had too much Monarch."

[CletusMusashi]

So who else thinks he's related to Doctor Venture? They look similar, they have similar voices, and if he found at as an adult that, for example, Rusty was the child (or perhaps clone) who was brought up in a life of adventure while Malcolm was given up for adoption- that could be his motivation. 

We don't even know how much of his origin story given in the pilot episode is true. My bet is little to none.