Then what would? If it is simply being the best player on the best team, then he deserves the award most years. Is it determined by which team would suffer most if he was replaced with a replacement level player? Then he would win the award every year. Is it who was the most dominant that season? Then he would win the award almost every year.
No matter the metric (unless the metric is who is the best player not named LeBron) he deserves the MVP practically every season.