Yes!! That and the fact that he has lied so many times for his own good... When the plane crashed and Boone died because he lied about what happened.. Or the fact he did lead everyone to believe he was hunting so he could dig out the hatch... He care about himself and no one else and no price is too high to pay for any of his fellow losties

__________________
Please don't give up, Des. Because all we really need to survive is one person who truly loves us. And you have her. I will wait for
you. Always. I love you, Pen

DESMOND: I love you, Penny. I've always loved you. I'm so sorry. I love you!
PENNY: I love you too.
DESMOND: I don't know where I am, but--
PENNY: I'll find you, Des--
DESMOND: --I promise--
PENNY: --no matter what--
DESMOND: --I'll come back to you--
PENNY: --I won't give up--
BOTH: I promise. I love you.