How can anthropology help us today?
Anthropology is the study of mankind. It is the "umbrella" study that includes economics, sociology, psychology, music, etc... There are specialties within Anthropology today that focuses on narrow areas of this study, Retail Anthropology looks at how we buy things, Corporate Anthropology looks at corporate cultures and change management, Ethno-musicology looks at how we use music for both enjoyment and business etc...
And this just scratches the surface. Of course there is physical Anthropology which looks at both the fossile record but also how and what we are today, how we have evolved and continue to do so. Archaeology, which looks at not only our past but is a part of forensics looking at crime scenes.
So, it has many uses and they are as diverse as we are.