Gandhi never said “be the change you want to see in the world”– it’s a paraphrase of his actual quote: “If we could change ourselves, the tendencies in the world would also change. As a man changes his own nature, so does the attitude of the world change towards him. … We need not wait to see what others do.”
More importantly, he meant that personal change and social transformation go hand-in-hand. And if you have time to sit around in hope or in complaint about a system that doesn’t work according to you, then you have time to get up and do something about it. Even the smallest act you do for society has already made the biggest change: that of you.