The question of brutality in the natural order is a difficult one. Even Darwin wondered how God could allow such brutality. In addressing the question, you want to be careful you don't get told that people who live in glass houses shouldn't throw stones. The problem is that more than one Christian has bemoaned the alleged brutality of evolution and then rejected it s an ungodly concept; yet the Christian religion has been one of the most brutal religions there has ever been. Augustine, for example, legitimated torture as a way of forcing conversion. And then ther were the witch hunts, Inquisition, persecutions of fellow Christians, persecutions of those of other faiths, etc. In fact, our founding fathers, especially Adams, Madison, and Jefferson, had grave doubts how appropriate Christianity would be in a free and just society, as they were quite outspoken that all it had ever fostered was bloodshed, tyranny, fear, ignorance, oppression, you name it. Dawkins is quote outspoken on how brutal and sadistic the OT God is. Hitler's extermination of the Jews can be traced back into the anti-semiticism of Christian Germany, where Luther wrote a book titled "The Jews and Their Lies," in which he recommended an extermination policy almost identical to what Hitler carried out. Hitler said more than once that "I am only doing the Lord's work." So when we are working out of a Christian perspective, we have to be very careful we don't get tarred by the same brush. Animals kill for a definite reason. They have to in order to eat. Humans kill and torture and coerce just because they are intolerant and cannot stand someone who doesn't share their beliefs. Who are we to criticize nature?
I don't think that competition and survival of the fittest are the whole story on evolution. There is also cooperation as well. Even bacteria have been shown to have altruistic behavior. There is a definite direction to evolution and it is from the most simple and insensitive upwards to the more complex and sensitive. Often, the more complex and sensitive are not the ones most likely to survive.