Can the casinos control which number falls on live roulette?
No. If you choose a top tier provider (meaning any live casino provider reviewed on this website) the chances of them trying to rig the games are pretty much 0.
The casino already holds a house edge of between 1.35% (for French Roulette on even money bets) to 5.20% (for American Roulette) so why would they try to cheat?
Sounds like a lot to lose for relatively little potential gain.