The balance of expression.

The fact of life: Everyone starts taking you for granted if you're too soft, you do all the work, you listen to all the orders and you take all the efforts.
Ethically, it is right to do all these things. There is just one thing to bear in mind. If you overdo this goody goody stuff, it'll backfire. And much as you would think of speaking and behaving nicely to people, sometimes you are compelled to raise your voice, argue, fire and squash people beneath your feet. This would be quite unlike me of course !!! (I ain't joking, I cant do all these as easily as some people would, it requires a lot of effort, in my case). But quite a lot of times these days, I find that its very useful. It shuts up people, they have to think twice before taking you for a ride with their bossy attitude and you learn how to defend yourself against dictatorship. It also gives you that very upmanship at times and the savage satisfaction of having defeated someone, or having shown him, that you can fight and overthrow your opponent. It makes you feel like a raging tiger or the king of the jungle. It gives you a psychological high. Can't overdo this stuff also, however. You keep speaking like that all the time and your words lose their value. People take you for a fool whose always arguing. Slowly people learn to ignore you even when your point may be right, although, raised your voice is, as always.
As they say, there needs to be balance of everything in life and human behaviour.