Accessibility as a Driver for Quality

Accessibility is a quality outcome of a good design and development practice. However, accessibility is commonly overlooked on product teams, or is considered a secondary or tertiary concern to be addressed at the end of product development. It can be difficult to get product teams to integrate accessibility into process and practice. Security and privacy are widely held as crucial to software and online services, in part due to their accompanying legal obligations. Can accessibility, with its legal imperatives, provide a driver for closer attention to designing quality user experiences, based on a solid development practices?