Some kids probably do need treatment, but not anywhere near the number that are taking dangerous meds. Psychiatrists used to counsel patients; now they give them drugs at their first appointment. Many, including the distinguished psychiatrist/professor/author of this piece on HuffPo, are up in arms about this situation.
^^THIS^^
And it makes it a lot tougher for parents of the kids that "really" have a problem, because so much cynicism has been bred regarding this issue.
Sad to say, there are people I have known in my life that I could predict whose kids will be diagnosed with ADHD. Except for one family, they've met basically the same critieria: split or "too busy" parents, lack of discipline, overstimulation (endless TV and electronics) and crappy diet.
Toss in the prejudice against "normal boy behavior" in the schools and it's been a recipe for disaster.