Yesterday I realized something kinda crazy about Robert House: He likes uncertainty.
He has the money to fully buy out General Atomics and Wilson Atomatoys, but instead prefers to keep them as competitors. He can easily force their hand, but chooses not to. If they get too dangerous, he can still feel them in, but he does like the danger to a certain extent.
He has a body double, but instead of using it as protection against threats, he was invites the would-be assassin to meet with the real him, alone, with little to no outside security. He lets the future of America, along with cold fusion, be someone else’s choice.
He owns all of Vegas, but still allows large parts of its future to fall into the hands of complete strangers, and sometimes even enemies, just for the sake of winning it back. He made the air deterrence system, but won't know if it will work until it's too late to change anything.
He could easily have had the chip be delivered to him by a whole army of securitrons, but chose a courier both times. He could have had the strip run by only those who were loyal to him, but let it instead be controlled by people he knew would betray him. He does the math and yet chooses to go against it.
All in all, he may be placing his money on the safe bet, but he’s still gambling either way. That's what makes him so interesting as a character.