yes – if they start a war.
yes – if they invent something such as penicillin.
yes – buy bringing in an action – such as banning plastic bag.
yes – doing something good and without recognition and hope others do the same.
yes – if you ruled a country you could bring in laws.
yes – if you help to change it.
no – because people have different opinions.
no – because teamwork is the key to everything.