Traditional schooling is a formidable institution to challenge - and with such challenges, it can often be demoralizing to see change defined, over and over again, as an exercise in rearranging the deck chairs on the Titanic.
A lot of school reform is about improving school without changing anything.
Being an outspoken critic of homework, grading, rewards, punishment, desks, multiple-choice tests, late marks, worksheets, Smartboards, awards assemblies, honor rolls, detailed lesson plans, scripted curriculums, and hand raising is often not a popular stance. While some see these as the solutions, others see them as the problem.
I would imagine that some might see such an unconventional stance as being overly disgruntled. I can imagine that some might ask if I've ever considered the idea that I may be in the wrong field. Some might wonder why I bother working in a field fraught with such injustices.
It's a good question and a thoughtful challenge to which I can only respond with: It's because of these injustices that I know I'm in the right field.