Hello there,
no, both paths can share BUT is always up to the player's decision to do so.
One more thing, so when I was playing today, I was doing the mario's quest where we help the police girl to arrest him by taking the help of Emma. But i never fully corrupted his wife before his arrest and after the arrest whenever i try to talk with her, she just says that i ruined her life and to leave her alone.
Does that mean i did a mistake by not Fully corrupting her before mario's arrest and doing so her quest and scenes are blocked/locked for me now?