While February and March are prime mock-draft months for the NFL, August is mock-draft month for fantasy football. The difference is that while real-world mocks are largely for entertainment and prognostication purposes, fantasy mocks can actually help fantasy managers have better seasons.
No, mock drafts aren't going to tell you who is a safe pick or where the best sleepers lie. However, they can help determine how players are being valued and in what range certain positions or players should be targeted.
For example, let's take a look at Kansas City Chiefs rookie running back Clyde Edwards-Helaire.