A firefighter needs to be brave, courageous and always willing to look after others. A firefighter puts out fire. We have firefighters to help us put fires out.
A Singer main role is to entertain an audience by writing and performing great music. Some singers have nice voices. Some singers are good at playing guitars.
To be a good pilot you need to think carefully, make good decisions and always keep the safety others in mind. The main thing to be are pilot is to keep people safe and to help others.