Some people do change. Some people do break their bad habits and pick up better ones. However, this requires an action plan, and more -- it requires taking responsibility for implementing that plan, one step at a time.
In 2003, I left a corporate job in management to work on a presidential campaign. I took a two-thirds pay cut. Why? I was inspired by the promise of an accountable and open government by, for and of the people.
Only when schools and summer camps realize their deal with air transport companies could result in an athlete joining the grim accident statistics will they close the door to opportunistic sales people.