This is such a great question and one that I don't believe can be answered on a mass level but more on a personal one. I myself did not grow up in a home beaming with confidence. More of a home centered around self deprivation, not accepting one's faults and often ignoring of real issues. This in turn made me a person that was willing to do anything to get someone to like me or make me feel special, thus filling a void of familial acceptance.
It takes courage and strength from the person wanting to make a change. They have to be willing to go to deep and dark places on their own, asking questions about why they want change. We often see these magazine covers and Hollywood reporter stories on TV that make us believe the outward look of perfection makes us perfect inside as well. The only way to realize this is not the case, that these people we put on pedestals have the same problems as everyone else, they just make more money.
We all have faults and learning to accept them and deal with them will in turn make a person more confident to stand up for themselves wanting to stay au natural. This should be the standard, not the plastic fake people we see every day and it is sad to know that beauty is really no longer in the eye of the beholder or what lies within. These two sayings are difficult to hold true anymore when the definition of beauty has become simply that regarding one's outside appearance.