The former Real Madrid boss expressed the view ahead of Sunday's Community Shield clash with Premier League champions Leicester City at Wembley.
"Maybe English football has changed them," Mourinho told reporters when asked if Leicester's title triumph had sent a message to Europe's elite clubs. "This is the only country where everyone wants this to happen. This is the only country where the football structures allow this to happen.
"In the other countries the powerful clubs don't want this to happen. In the other countries they do not want to have to share the money. They don't want to share TV rights.
"In the other countries they want to be comfortable and know they will always be the top dogs in the Champions League. They want it to be a competition of two, three or four and if possible a competition of just one. So this is a special country.
"You have, around Europe, people who when you listen to them it looks like they are the Mother Teresa of football but they are not.
"You go to many countries and clearly they are happy the way they are. It is not just about them being powerful. It is also to go to the clubs that can be direct competition and every season steal their best players so they don't want a league.
"In this country we want a league. Everybody wants a league. An amazing story like Leicester brings even more credibility to the Premier League and that's why the Premier League is the Premier League."