The infamous speech is appealing because Chaplin is stating the obvious, something that no one did at that time, no one dared.
Chaplin is a bold filmmaker. But saying that, just that, would it be enough. I mean Seth Rogen and James Franco made and released a film that was accused of being an act of war. Maybe that was a bold move- MAYBE! This bravery is beyond limit, to a certain degree that it loses the wit and noble intentions and innocence and just hangs on the wall as a piece of art, alone, without any strings attached. And yet this cannot be considered or enjoyed or even understood instead of accounting the subtext that it actually reads on, no matter what the disclaimer might say at the beginning of the film.
Everything, from writing to directing to acting, Charlie Chaplin is, instead of exerting, absorbing an enormous amount of energy for owning the rights of having an upper hand. And it works every time. Playing two characters, the hardworking empathetic barber with an incredibly moving from-penny-to-palace trajectory that emphasises to be of cinematic level. I am perpetually attracted towards his dictator figure that he so meticulously and passionately portrays. Not for what or who he represents, not the jokes, not the irony of it, but the enigma that Chaplin encodes that goes unnoticed.
What he basically does and did at that time and day is, maybe deliberately or inadvertently, humanize the god-like-powerful persona. He has lavishly portrayed him, dipped and literally covered around gold, yet his dissatisfaction and inadequacies is what gives depth to this classic. Not the physical fumbles for the laugh but a sensible decision of his lifestyle that covers up his professional, personal, love and social life- the iconic scene of Chaplin playing with a globe, yes could be and should be considered as one of the best moments of cinematic history. The Great Dictator is great, simply great, and so is the crowd he wishes to nurture.