You can. You will. You are.
  I keep my eyes open for positive signs of change. I stay in the
  trenches, seeking opportunities to highlight what's good when I
  find it.

  For example, a year ago, I posted a comment about the value of
  Youtube and educators (in this case, VSauce), who are reaching
  out with the best they have in making subjects interesting and
  approachable. It's supplementary education that these kids WANT
  to get. Schools aren't doing it as they are doing it now, and
  haven't.

  It's on his video, "Why are we morbidly curious?".

  But what's interesting is not what I said, it's the PASSIONATE
  replies from young people, all craving for that something
  "different" than what they're getting.

  They'll likely be graduated and out of school by the time the
  kinds of changes necessary are visible to the outside world, but
  their passion is there NOW... the same passion I had when I was
  their age, and still have today.

  These kids are unleashed on the 'net, more opportunities than we
  could imagine, in so many directions. Opportunities to help them
  become better people, know more, think more clearly, be able to
  handle emotional stressors in life... they abound on a
  day-to-day basis.

  So, I try to find opportunities to help. Turning little switches
  here and there and hoping a changed mind will self-organize into
  greater and greater things in THEIR places, wherever they find
  themselves... and help improve their world... not just while
  they're in school, but through life.

  I never found an enveloping set of principles or groups to
  become a part of in my efforts, so I go alone as best I can,
  stay exposed and open and I know some good will come of it and
  it seems much already has even in my lifetime.