And being independently wealthy, one can easily see where it's really not worth the headaches and personal peril involved in pushing the issue. His actions so far have been for the interest of Lebanon, and despite all the rhetoric about him consorting with the killers of his father - he really hasn't. Hezbollah is the one being implicated, not Syria, and he certainly hasn't consorted with Hezbollah, nor has he acquiesced to its demands. If his primary interest was personal ambition - he would have.
Saudis warns U.S. that 9/11 responsibility law would erode investor confidence in America (Reuters)
from the article: Hariri: No alternative to dialogue to solve Lebanon crisis