He reminds me of Matt Damon from Good Will Hunting, working away in his construction hat. Sure, you do what makes you happy, but you cannot argue two things - one, people would kill to have that kind of skill to fulfill their ambitions, and two - he has truly wasted his entire career with nothing to show for it.
He could have stayed at Spurs his entire career, but he is NOT a one club man.
He could have pulled his club through single handedly in clutch games, but he did NOT win anything with Spurs even at their best.
Similarly, he could have led England through to some memorable silverware, but again he has NOT won anything with England even with brilliant players around him.
He could have moved to any other PL club, but he will NOT be the PL's top scorer.
He could have taken the money route out, but he tied himseld down to a sub-par long term contract, and did NOT monetize his skills.
He will NOT be the reason Bayern win anything, even if they do their usual Bundesliga round up. Just a passenger.
He is essentially a nothing man who had a lot of potential and chose not to do anything with it, hated and abused by his own boyhood club's fans if Fighting Cock is anything to go by. Good to watch if you turn the TV on once in a while, and that's about it.
He could have joined City if he'd forced it, and won their first treble. He could have joined United under ETH or Chelsea under Poch if he wanted to, again, but chose the easiest route out with Bayern. He has essentially wasted away his prime years at the whim of an egotistical billionaire who player him like a fiddle. Levy did right by his own right - Kane let him. Good for him if it made him happy, but it'll be a user study on how NOT to spend your career.
Given all this, I think both Chelsea and United fans should be glad they did not spend a fortune on signing a player who has no mettle or ambition around him, even with the numbers. What a tragic disappointment of a career.