I am a firm believer that Accessibility is an enabler for better and more creative products and services, this article on The Drum Accessible Design Doesn’t Restrict Creativity; It Unleashes explores how constraints imposed to be accessible unleash creativity.

"For ethical, legal and business reasons, it’s essential that digital products are accessible to the widest possible range of users. But doesn’t this hold designers back creatively? For The Drum's Creativity in Focus Deep Dive, Matt Gibson of agency Cyber-Duck argues that the practical constraints of accessibility can spur designers on to be more creative than ever."

Some additional articles on accessibility and product design:

Disability as the Driver of Innovation, Tim Dixon (bbeb.com)

Is your product accessible?, Tim Dixon (bbeb.com) 

Accessibility as Standard, Tim Dixon (bbeb.com)