Maybe, maybe not.  I don't think people who are timid generally end up on boards like this, where they are pushing to represent the issues of their constituents and advance their own agenda.

Also, that might be true of bullies all else being equal, but if a bully has two potential targets, the bully is always going to pick the target they perceive to be "weaker," and if they have a conscious or unconscious bias against a minority group, the minority individual will thus unfairly face the brunt of that bully's efforts.