In my experience, if you narrow the focus of "you" from the company to you the mentor, "will support you and promote you for the rest of your life" can happen.

In my experience, if you narrow the focus of "you" from the company to you the mentor, "will support you and promote you for the rest of your life" can happen. Although it sounds like a certain amount of delicacy is required in the vast majority of companies like your current one where they have to move to get rewarded for their increased value. There also might be some relevant variations in corporate cultures around the world, what you say rings true for the US, but the author is in Estonia.