How can social workers improve mental health services in the US, sociology homework help

Question: How can social workers improve mental health services in the US?

It is estimated that one in four U.S adults experiences mental illness sometime in their life. Almost half of all professional social workers identify mental health as their primary or secondary practice area, while 60% of the mental health professionals are clinically trained social workers.

For this post think of why mental health is not given due importance in health care. Why are so many still undiagnosed, untreated or criminalized. How can social work improve mental health care. Please think Macro and Micro level social work practice.