That people even in well paid jobs choose ever earlier retirement is a severe indictment of our organizations - not just business, but government service, the universities. These people don't find their jobs interesting.
Teaching is the only major occupation of man for which we have not yet developed tools that make an average person capable of competence and performance. In teaching we rely on the 'naturals,' the ones who somehow know how to teach.
There's an enormous number of managers who have retired on the job.