Who is Ignacy Jan Paderewski from The Great Pianists and what is their importance?

Ignacy Jan Paderewski was the name of Leschetizky's most famous pupil and legendary pianist, who was said to be "an archangel come down to earth." His popularity as the greatest pianist was not shared by fellow pianists who did not take him seriously. He was idolized by the public but considered a backstage terror, vain spoiled and a bully. Paderewski was not thought a legend by his peers and his 1911 and later recordings show he was not a great technician. He did play with a noble tone, style and awesome public image.