Madara simply lived in a time where war was life, so obviously this influenced his ideals greatly. These ideals were birth during this time; so as suspected his view of peace seems warped to many. What many people fail to realize is that one's experiences influence their way of thinking.
Man learns through experiences, as such he will encounter difficulties and obstacles, but it is needed to advanced him. The bitter the experience the more fundamental value it has to it; it is the teacher of all things. The value of experience is not in seeing much, but in seeing wisely.