I've always considered alpha to be a total package: exercise, smart, good education, confidence, sharp sense of humor and wit, good vocabulary and doesn't eat shit.
Certain features give you an advantage sure. I'm 5'11. I realize it must suck to be 5'7. I have little to no baldness and certainly no male pattern baldness at 35, and my hair has just a gray hair or two. I dress decently and drive a reasonable vehicle and pull down a good salary. But I'm a bit of an introvert at times with a get shit done asshole demeanor at work.