Integrity: The quality of being honest and having strong moral principles; moral uprightness.
When you promise someone, you have the ethical integrity to be bound by your words. When someone failed to keep their word or break promises, his or her reputation was damaged. Also, a lack of trustworthiness meant that people didn’t do business with them.
It has allowed researchers to study the brain more efficiently than what they did before. and it also helped them by the researchers being able to find cures for diseases.