what if wanting, doing Good is a desire too?

A question propped in my mind probably from seeing the world affairs. And my mental and physical state of helplessness about it all. Nature holds creation and destruction. A volcano when it erupts doesn’t stop for a village or trees. It has a purpose or existence equivalent to anything else of similar magnitude. A lightning strikes wherever the conditions are right for it to strike. Nature presents creation and destruction equally. So why must humanity choose morality? why good is a right choice? In War or conflict there are two sides. Both are right according to them and both are wrong according to the other. So what is good; a relative perspective or is it a moral absolute? How can anyone shamelessly strive for moral absolute when they are ignorant of theirs? Like I eat meat, I also love my pet, how can I have or deserve a moral absolute ? How often do we even retrospectively ask? And does it even matter if good is a baseless choice, a favorable desire, a mathematical higher value but far from an absolute value? what if wanting good is a desire too, an opposing ask? 

Mind goes into an inexplicable silence, part fear and part bleak emptiness. Does good matter?