Philster401
Maester
The love potion was definitely part of the way Voldemort turned out the way he did, but I think there was a lot more to it than that. Maybe if he'd been adopted by a loving family rather than left in an orphanage -- and a Muggle orphanage to boot -- who can say what he would have been like? This is one more thing that makes him a foil for Harry; Harry grew to be kindhearted and loving despite the Dursleys' neglect and abuse, while Riddle/Voldemort was twisted and corrupt from start to finish.
JK Rowling has stated that voldemort couldn't love because he was conceived under a love potion.