Many people are more focused on their ModaPills because another effect of Modafinil can help stay focused.

It has been shown to help people stay focused throughout the day even though they may not feel particularly motivated at any one time.
This comes about because these types of medicines allow our minds to stay active and alert without needing as much stimulation from outside sources to focus on tasks or things we want to do during the course of a normal day.
This helps some students stay focused when doing schoolwork due in part to keeping themselves interested in what they are doing.