They are caught and punished, however. Treatment Therapy as noted above is most helpful if it is problem focused. Gently awakening the buried feelings in the client and connecting them to current actions is the basic goal and process. Other modalities may help too to provide experiences that change the way the Antisocial sees themselves in the world. This basically amounts to teaching sublimation though.
Family therapy can be helpful.
If the entire family cooperates to make demands of the patient, and not give them any leeway to begin rationalizing and justifying their irresponsible behavior, the client can make some limited changes. Medication to target specific behaviors like impulsivity and aggressiveness may help, but you can't medicate the underlying cause of the disorder. The best treatment may be time. Antisocials don't come in for treatment much after age 35. Thus, some antisocial behaviors are avoided to avoid the frustration and annoyance they cause.