I like the above. This holds pretty true for the consulting world. With corporate you will find that these title will change depending on the corporation. Usually your title is based on your pay grade and you can raise a pay grade gain responsibilities and keep the same title. Fr example when I was hired at Mars with 3 years of experience I was an “industrial Designer”. I was promoted 2 years later and given the responsibility that Yo described in the “Sr ID” but my title stayed. My pay grade or level went up which is open information in our organization. I was promoted again to “Industrial Design Manager” which could be hat Yo suggested as principal. I now am responsible for all ID work in the US and manage ID resources.
I guess what I am trying to say is… It all depends.