Manchester United, Manchester City and Chelsea all offered him the same wages. All offers were accepted.
The reported 200k a week are false. It's around 110k a week.
He decided to choose Chelsea, a team not as rich as Manchester City, because they won the Champions League, and were the only team that would guarantee him to be a 1st-choice starting player.
He was one of the most sought after players in the world. If he simply wanted money, he would have gone to PSG, Russia or China.