In a sport that, perhaps to the UFC's chagrin, is entirely driven by stars, the biggest names matter the most. That’s not any particular brand of rocket science by any stretch of the imagination.
And in that sport where stars matter so much and the bigger the star the more he or she matters, Conor McGregor shines the brightest. He’s a world champion after violently dethroning the greatest featherweight to ever live last year, he’s a walking financial windfall for those lucky enough to land a fight with him, and he’s single-handedly taken on his employers on more than one occasion and come out smelling like a rose.