City will secure the Premier League if they win their remaining three games.
"Helping other teams is not the way we do things," said Martinez. "We focus on trying to win for ourselves."
The Spaniard said securing a European place is all he is thinking of ahead of City's visit - Everton's last home match of the season.
"It is going to be a phenomenal test and we want to finish really strong at home," said the Spaniard.
"There is no doubt of our integrity - we want to win every game we go into.
"We are looking at ourselves because these are precious points. We can't afford not to give everything we have."
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