The managers above you are judged by them climbing higher. So if they can coach you into a larger role, they'll look better. There's no incentive from the manager side to leave you alone, unless you've made enemies.
As long as you work somewhere with ladder mobility and some churn, the opportunists will rise, and they'll want/need you to rise too.
As long as you work somewhere with ladder mobility and some churn, the opportunists will rise, and they'll want/need you to rise too.