Cloned organisms aren't less valuable, but they are more useful. Many research techniques work much better with cloning not to mention that fulll-organism cloning is a useful stepping stone for learning to clone organs. So yeah it kind of 'helps science' shitloads. It helps care for people who lose organs, have cancer, get nerve damage etc etc. I really don't need to explain this.

Any man and his donkey can criticize cloning, instead of criticizing first then asking someone else to explain it to you why don't people either a) trust scientists or b) figure it out themselves. It's really not that complex.