Truth?

Been using a new software programme that manipulates photos under the umbrella of "beauty photography", which is all the rage in the States. Whilst I can see it "improves" looks (removes skin blemishes, smoothes wrinkles etc.), does it mean the photo loses its "truth"?
People keep saying they want to be airbrushed; this is how it's done these days.
What are your thoughts on these before & after photos?