The issue of Fadak

Re: The issue of Fadak

he did not by any mean lead a life of isolation he "retired" from duties of active conquests but he was by no means the only senior companion to do so (amongst other people Talha is another one)...
apart from that he was very active esp during the administration of sayyidna umar and even during the turbulant times of uthman's caliphate Sayyidna Ali was the by default the leader of muhajireen in all major disputes ...why wud they choose him as a leader if he led a life of isolation.