An issue is a matter of public or personal concern. A value is something deeply important to you. People who enter public service careers through the lens of "issue" or "value" may champion a cause — such as helping people find housing, or developing the assets of teen parents — and may be motivated by a range of values — like principles of compassion and community.
The next steps for you, if you're entering from the lens of "issue" or "value" are to figure out:
Often organizations exist to address a specific issue.