Or rather it depends - for people like the woman in the article it is probably a good thing, because she excels at social interactions. If her world order would become the norm, the people less skilled in social interactions would lose out. So it is not fighting for a better world - it is just everybody fighting for a world order in which they have the best cards on their hands.
That said, if you open a PC repair service, the likelihood that the hairdresser in your neighborhood would come to you with PC problems seems high. If you don't offer repair services in your neighborhood right now, I wonder why not? My guess would be that your computer skills are probably more valuable than what you could earn with repair services (typically better paid than haircuts, so would you be willing to exchange 1:1?).
Yep, as an introvert, this is the part that would terrify me about adopting such a lifestyle.