Just read this over on Shinya's blog:
recently someone told us that motorcycle building is still a blue-collar work. shinya and i looked each other's interrogative faces when we heard that because we've never thought about what category of business we were into. i personally don't care what color our collars are, wait, we don't even wear collared shirts during work ;P anyway, we're doing whatever we love and if it requires hard work or physical work we'll do it! at the end of the day or at the time when we accomplished something and if we could still feel "man, it was hard but we love what we do!" then it's all cool. every work has hard and difficult sides so we just don't blame on the color of the collar.
Well said. Doing what you love is all that matters.