Saudi Arabia, Prince Alwaleed bin-Talal sat on a thick carpet while hundreds of men gathered to seek his charity. They lined up to kiss his shoulder and hand him pieces of paper with requests for money — to buy a home or a car, to educate a child, pay off a debt or repair a mosque. Some brought him modest gifts, to thank him for past favors. Others offered poems and songs in praise. Alwaleed is a nephew of Saudi King Abdullah, and he’s also the richest man in the Arab world, with a personal fortune estimated at $21 billion at the end of last year, and holdings that include big pieces of Citicorp, Apple, Motorola, Disney, News Corp and Time Warner, to name just a few. After dinner, it was time for the Prince to finally receive the supplicants. The sheikhs went first, then the rest of the men, each handing him their request in writing. Alwaleed scarcely glanced at the notes before handing them to an aide, who stuffed them into a suitcase.