While I think Saban is completely out of line, I do understand his frustration. If everything was "fair," he'd have the best class every year he won the national championship. Those classes combined would result in a national championship most years. If Jimbo goes out and gets the best class in history without significant championships, it can send the message that winning doesn't really matter.
Put another way, most on this board would be irked if they worked hard an entire career to be president of a company sacrificing time with family and family vacations only to have a buddy from college that slacked off for 30 years be promoted to president. Most here would also say that a minority student getting more scholarship money or preferred admission over a white student would also be unfair if their record didn't match the white student's record.
In Saban's mind, he wins games so he deserves the best recruits. Most of us think that if we work the hardest, we deserve the best promotion and opportunities. We think that if we have the best grades and resumes, we deserve the most scholarship money. Eventually we learn that life isn't fair, and work to stack the deck in favor of our own personal goals.
And honestly, this is just par for the course for Saban. He complained about the passing game (because it gave other teams an advantage over him) while he was vastly improving the passing game. Now he's complaining about NIL (which gives other teams an advantage over him) while he's lobbying boosters to create a NIL program that will rival ours. Nothing really groundbreaking going on here.