I agree.
This is because the life we live right now is so complex and as such we need to make it fun and happy, even if we face severe problems. Having a great sense of humor will make us laugh more. Even modern medicine recommends laughter as the best medicine for the body. It releases stress and makes you stable emotionally.
In the education sector, a great sense of humor will help teachers spread happiness around in the classroom, building the self esteem and self confidence of their students.
As a leader in any set up, a tactful and great sense of humor will help you send directions and messages to your followers in a calm manner, making them to adhere easly to instructions. It can help heal the problems of an organizations, resolving issues easily. It helps a leader foster creativity in his followers and cope with work stress.
Lastly for marriages and relationships to endure, a sense of humor must exist so that both partners can relate well. It will help partners build havens of happiness. It will help them apologize to each other and reduce the rate at which they offend each other.