Won't I be the primary target of the mafios?
Do you want me to be invincible in mafia IV for the first night and first day? 
The way I see it, you're the least likely to be killed. Sure, we all know you're an innocent, but you're power can actually help any faction (depending on whether you're right or wrong about which lynch to veto). Also, baddies may know you are an innocent, but there are much more dangerous and important-to-kill innocents out there, so why waste a kill on you when they could possibly be killing a real threat to them or an objective to winning? You're safe, relax. At least, if you get killed fast, I'll be surprised.