This family can't live a regular life and they want to help people. Prevent a suicide, get a cat from the tree or help the police? There is nothing impossible for them.
Mr. Incredible is the pride of this city and he has done many good things to prove that. He wish the one and only thing, to make sure everything will be good and people will be in safe. If you save at least one single life you won't regret anything in your life. Go ahead and save people or their animals from the traps and troubles.