No certificate, no reward, no accreditation.
You will get:
- Americans who listen to you
- Americans who are convinced by your ideas and proposals and act in line
- more prestige and appreciation
- a trustful relationship with Americans
- more time
- more energy
- more pleasure
You will feel rewarded by your accomplishments. You will be more culturally sensitive and culturally intelligent, which will make you even more capable of doing your job succesfully. That will probably pay off.