One of the most important aspects of the work L. Ron Hubbard did is that with the application of Scientology technology people become more competent, brighter and more responsible.
Even just reading a book and using what you have learned in that book in your life can have the effect of improving your ability to cope and smooth out situations in your life.
This has ramifications on a societal level as well. As Mr. Hubbard wrote:
"You can't have a civilization without able citizens. It is impossible to have a working democracy without its ranks including only intelligent and capable individuals."