Evil incarnate
Jokes aside, I'm not sure what to think of Laventon in particular at the moment. I do, however, have the theory that him, Cyllene and Kamado are an evil triunvirate and the antagonists/villains of the game.
See, Team Galactic must have had some sort of precedent to act as they do in the present time (D/P/Pt/BD/SP). My bet is that the heads of the Galaxy Exploration Team/Survey Corps intend to use the player character's research to "reshape" the region as they see fit, without taking into account the wishes of the people and Pokémon living in it, and will ultimately fail for the most part. However, this will leave the door open for their descendants - namely, Cyrus - to continue their mission on a far more extreme scale.
Furthermore, they represent exactly the kind of people that would want forced modernization at the expense of the native people and wildlife, if the real-life conflict over the colonization of present-day Hokkaido is any indication. Kamado would represent Imperial Japanese power, Cyllene would be an internal opportunist working against her people (in other words, a traitor), and lastly, Laventon would stand in for Western imperialism or at the very least interests. I don't think they'll make it that explicit in-game, but after reading some of the historical background upon which this game is built, that was the impression they gave me.