If I let you live in a palace but you must promise to live a life of poverty and never accumalate cash or any personal posessions, live an abstinate life and be obediant to those you serve (the poor and faithful), would you do it? You must also pray and lead the prayers of others while guiding a church of almost 1,000,000,000. If you make this vow and break it, your friends will abandon you, your name will be held contempt and there will be no place on Earth to hide.
After more than 50 years on the job, the fringe benefits will include having mealy mouth detractors try to tackle you at Chrismas Eve masses to gain notoriety and hearing from other ne'er do wells (eg. Dick Dawkins) who envy your congetration.