This is not about trying to convince people, it is about bringing convincing arguments to make an interesting discussion. Otherwise, that's just your opinion thrown in there, and why should anyone care?
So, no, this is not about "convincing arguments". As with all of existence, this is about making a statement of who you really are and inspiring others. There is intrinsic value in that. I believe in leadership by example. I do not believe in leadership by "convincing arguments".
Good discussions can make you see things differently, take a new perspective that you had not fully considered before. If you only make "life statements" and never cordially exchange points of view, you lose a much useful way of changing your own; you risk keeping yourself in a warm sense of certitude, losing precious feedback from other people's insight.