Well, there is the fact that the Pope is NOT just "any other Jesuit", and it is very unhelpful for any of us to pretend otherwise. The Jesuits I know all understand the realities of a healthy superior/subordinate relationship in which each party knows clearly who he is and where he stands, and performs his duty accordingly.
I am quite willing to assume the new Pope's humility is genuine. I hope he will learn soon that unequality is natural -- which is to say, God-given -- and therefore cannot be fudged out of the picture without giving way to sentimental falsehood.
Although, it may be a gesture of humility on the part of Pope Francis to allow himself to be treated as just another Jesuit, treating the pope as just another Jesuit contradicts the reality. Seeing as many of the Jesuits take a vow of complete obedience to the pope, it is hard to imagine that even the Jesuits could treat the pope as simply "any other Jesuit." Many of the Jesuit order have to vow special obedience to the pope....which of course implies that the Jesuits cannot treat the pope as if he were just another Jesuit. Even if the Jesuits tried to treat the pope in such a casual fashion, it would only mask the true nature of the relationship between the pope and average Jesuit.