Increased independence strengthens society. An accessible, inclusive society is a strong society. Technologies that welcome everyone, everywhere, send a powerful message to each individual that we are all connected, and that our contributions are more valuable when they are more widely harvested and shared.
Society benefits economically. From increased participation of people with disabilities in the workforce, to an increase in taxpayers and reduction of support costs, people who are more independent benefit the economy of a country in many ways. Even for the elderly, delaying the day the must move from living independenly or with a spouse into supported living by as little as 6 months average would save billions. And this does not count the cost for unpaid caregiving, which most often places a heavy burden on family resources and opportunities. Increasing availability of assistive technologies reduces the societal cost of reduced productivity. Using the GPII as a framework to provide accessibility solutions will allow the government and private sector to more easily and more cost effectively develop and provide access solutions to those who need them for enhanced independence.
Preparation for the future. Assistive technology often struggles to keep up with changes in mainstream technology. The GPII approach can help future-proof our solutions by allowing us to plan for any new accessibility problems that arise from new technologies. That is, it can help us develop solutions that will continue to work as our computers continue to evolve and merge with everyday living and everything around us. This will reduce the social friction that evolving technologies always cause, by reducing the "accessibility question mark" from the minds of decision makers, including consumers.