Kenyans aren't mean. In fact they're the nicest people you'll ever meet. Take a trip sometime, you won't want to leave. You may even understand their mentality.
Yes, the likes of Lagat, Wilson Kipketer, Greg Konchellah and Cherono are considered sellouts because they've done the unforgivable; SOLD THEIR HERITAGE FOR FINANCIAL GAIN. (sort of like the biblical Esau selling his birthright to Jacob for a hot meal). To Kenyans, that is such a total loss of face and standing. People will be polite, but they won't respect you. Some don't consider them "MEN" anymore. This is especially a big deal in Lagat's Kalenjin tribe (traditionally fearless warriors). What he's done is considered a betrayal, desertion and, worst of all, cowardly. If he were single, he'd be hard-pressed to get a date in his home village.
You dumb Americans act like the other runners should treat Lagat with kid gloves and there should be a force field around him because he's running for the states now. Guess what, he ain't special, he'll be treated like every other runner out there. I've seen him reach out and receive polite handshakes from the Kenyans, post race. But he's irretrievably lost the most important thing, RESPECT.(I know that means little to Americans but in Kenya its huge).
As for Bekele, Kenyans regard him with the utmost awe and respect. Yes, there's some envy, but his exploits are acknowledged as LEGENDARY. No hate whatsoever. Every year, a new kid is inspired to run hoping to be the one to take him down. And when that day comes (and it will come), that kid will become a national hero.