Expectations Mismatch

I've been quoted in the supplementary to the Times Of India, Pune called "Top Career Destination".

The article is about "expectations mismatch" between employers and employees.

My thoughts are captured in a gist:

Gautam Ghosh, an organizational consultant opines: “ Often the applicant isn’t fully aware of his own needs, which are external and internal.
He may make a switch for higher salary, but later realize he misses the autonomy
of his previous organization more.” Ghosh advocates investing time in ‘behavioral interview’ too, as such interviews can prove to be more useful in ensuring a ‘cultural match’ of the organization and the employee.

Just Added: What do you think? Why does this happen? What can be done to prevent this?