Is happiness overrated?

Throughout human history we tend to increase comfort. We started with food, then health and travel and all the physical comforts of life. We did the physical explorations and found ways to keep us comfortable.

In the mean time late in the game we started exploring metal comfortness. Recent technological advances try to keep us happier than ever before, by adjusting the contents we consume online and the medications we take, etc.

Two questions arise

1. If we manipulate ourselves to be happier always, is happiness our ultimate motto? Does freewill needs happiness always?
2. Similar to physical comfortness leading to obesity and we now realising the need for exercise, will we be realising that being always happy is not the ultimate human need?

Or the meaning of happiness be redefined in future?