Soviet swimmer, Shavarsh Karapetyan. In 1976, he saw a trolleybus plunge into a reservoir and made 40 dives to rescue 20 people.

Injuries from glass shards hospitalized him for 45 days, where he developed pneumonia and sepsis, which ended his swimming career.

I think if you leap into a reservoir to save drowning children, especially if the situation was caused by a runaway trolley, you should also get an honorary philosophy degree.