That depends on what the hobby is of course. Also, it's not necessarily healthy. Being unable to switch your attention away from your hobby tends to cause problems in other areas of your life like neglecting the housework, your partner, your children, your health etc. That's part of the reason why these things are classed as disabilities.
These days the language tends away from “disability” towards “differently abled” - we can accommodate people with special needs and they can outperform “norms” in many fields.
