There is no need to meditate if you are never distracted.
Anyway, as you mentioned, meditation has multiple definitions. There are many forms that are about much more than just focus. Concentrative practices (e.g., samatha jhanas) are all about one-pointed focus, but mindfulness practice (vipassana) also includes awareness of whatever flits about in the mind. In this sense, it's about being aware of all the distractions... Metta practice is one-pointed focus, but directed to cultivation of joyous feelings.