When meanings are shared, they are concordant. However since people may assign different meanings to the same entity, a disconnect can occur that can result in deviant behaviors. Principle 2: Language

Language is, of course, at the core of communication, as well as miscommunication. In symbolic interactionism, language acts as a navigation tool that guides individuals through the often meandering conduit of meaning, using language to identify symbolic representation.

Principle 3: Thought

Thought is what allows individuals to go beyond the assignment and identification of symbols, and delve into the process of analysis. It is via thought that the meaning of symbols is modified in accordance with the reconstruction of self that tends to result from personal reflection.

Ultimately, symbolic interactionism uses each of these principles to explain human behavior, self-constructs and socialization...

Thus this theory seems to be applicable to a broader range of social problems than conflict theory or functionalist theory, because it combines psychological and sociological constructs, while delving into the deeper meanings that drive behaviors. Furthermore, it views social problems from the inside rather than the outside. As Blumer himself asserts, symbolic interactionism "lodges its problems in this natural world, conducts its studies in it, and derives its interpretations from such naturalistic studies" (the Society for More Creative Speech, 1996).
References

Blumer, H. (1969). Symbolic interactionism: Perspective and method. Englewood Cliffs, NJ: Prentice-Hall.

The Society for More Creative Speech (1996) Symbolic Interactionism as defined by Herbert Blumer, Retrieved from http://www.cdharris.net/text/blumer.html