A strong sense of social justice is commonly found in neurodivergent people: if you survived playground bullying and thrived in adulthood, you want to make bloody sure that nobody ever suffers on your watch. I seem to have found a lifelong role on corporate change programmes after frequently challenging managers in a way that makes sense to them.
My greatest advice to your readers who would challenge leaders is to learn leadership skills yourself, or at least as much as you can without any formal authority. For example, as an individual contributor, you can read books and take online courses on corporate strategy, change management, negotiation, organisational dynamics and other business skills.
When you bring solutions alongside problems, you're no longer perceived as just attacking the manager's competence, but instead suggesting an alternative way forward. When you use their words and their own frames of reference, it's much easier to frame the would-be criticisms in a format that adds value, making it much more persuasive.