Absolutely not. There are people who don’t even want to climb up from the bottom rung. There are a lot of reasons for this, all indicative of the sad state of our humanity.
1. We allow multi-generational poverty. When I was teaching in a low-economy school, I was stunned at how little many serious poor people cared about education. OTOH, when I taught at a well-funded Catholic school, both the students and teachers care a great deal.
2. Some people don’t care about what they do for a living. They have a job, it pays bills and that’s it.
3. Children are taught to not achieve.Anyone who’s been in school have seen teachers do incalculable damage to children by telling them they will never understand a topic. For example, ‘you’re a girl, you’re going to be bad at math.’
3. Some people know they can’t rise to the top. Being a janitor, say, in the Large Hadron Collider doesn’t mean they have a career path there.
Finally, there are people entirely happy with their job and don’t want to move up the ranks. For example, a teacher who loves teaching might turn down an administrative job such as being principal.
I am sure there are more reasons but that’s enough from me. :)