He's right. For example, in the medical world, more and more people are
opting for career paths that don't require being on call 24/7 over money
(very generalized - some of the highest paid specialties are the ones who spend
the least time working). That decision by generation X is slowly but surely
changing how the medical world operates.
There are some events that have a strong impact on your ability to choose, such
as natural disasters, unexpected personal illness or injury, or, unfortunately,
the choices of those that have attained power over your local employment
choices. The last is something that we as a community and nation
have some influence on. When a powerful American employer opts to lay off
thousands and swap them out with thousands of $1 a day workers (slaves) in
Bangladesh because its still legal, we can still expose it regularly and make it
socially unacceptable (and financially hurtful to the employer) to do this. Perhaps we can even influence the world into a position where creating
such an environment of slavery is no longer acceptable.