If the choice in a given situation were "Save Lena" or "Save himself", does anyone actually think he'd choose the former. The former is "selfless love". That Luthor is capable of love, is arguable (I think the man is a true sociopath, so the answer is "no").
Selfless love? Hell to the No.
And they tried to resurrect "Lex Wants Lois" thing? WHY?