In BhagwadGeeta Lord Krishna says "Na Me Karma Fale Spruha" -- i.e, may fruit of thy action be not thy motive. Vinobaji was a gret follower of this and he is right in saying that moment you focus on the outcome, you do not give 100% of your attention, energy to whatever you are doing. This is a distraction from action. Work is worship can be exmplified automatically when results are truly wonderful.
They say anger is one letter away from danger. Anger is a spontaneous reaction -- it is not a response. The more matured mind is, less prone it is to anger. Always love JK's thoughts and thought-provoking questions.