I am a fearless warrior

I'm a fearless warrior. Should I not kill? With my skill and will, I till every hill. Amidst moral rifts, I have my mission. I'm the monarch. I make my decision. Like lions and tigers, I show aggression. There is a progression in my vision. I am loyal like the domestic brutes. My virtuous deeds have their moral roots. I cannot afford losing my esteem. Doesn't each slender sunbeam have a gleam? 'Catch as catch can' be a part of my game. Should each goodness fit into a frail frame?