I think you are making leaps of assumptions, and I'm not sure I agree at all. I do find your comments interesting, though, because it can capture what the perception outside the clubhouse is and how you measure leadership.
If there's one thing I can offer from my experience around a clubhouse and professional sports for more than 20 years now, is the players who look good on TV and sound like leaders on TV, aren't always the leaders when the camera turns off. And players who seem shy on camera or uncomfortable, are often great leaders inside for their peers.
I try to keep that in mind and make sure it's part of my coverage, so that I help readers understand the people shaping the team, and don't fall into the trap that a good quote is a good leader.
Wainwright and Molina are definitely leaders of the team, and have been for years because of their actions, their success, their presence in the clubhouse.
But they aren't alone.
And I don't agree with your characterization of the "rants." Sorry.