Sir Edmund Hillary
Hillary not only acknowledged his debt to Tenzing and the Sherpas, he spend much of the rest of his life working to improve their living conditions, building schools and medical clinics in remote sites in the high mountain villages.
I have always had a fascination with mountaineering, though I have never done it on any level. But I have always felt that the real hereos of these adventure stories are the Sherpa people for whom mountain climbing is a job fraught with danger.
Note: In 1978 Rienhold Messner made the first ascent of Everest without supplemeentary oxygen, and in 1980 reached the summit solo, the first (and as far as I know the only) climber ever to summit without Sherpa support.