Accessibility is good for everyone. It is not about catering to people who have one set of capabilities vs. another; it is about making tools and content available to as many people as possible.
I have worked with a variety of accessibility requirements, and strive to create designs that virtually anyone can use. For example, when creating the new design system for Blue Shield of California, I made sure that the font size for content and tools complied with the requirements set forth by the Centers for Medicare and Medicaid Services in the Centers for Medicare and Medicaid Services Marketing Guidelines.
This is not to say that consumers and professionals should always see the same interface. Including the flexibility to let users customize their experience, and applying logic to optimize the experience automatically when appropriate, is often a worthwhile investment. I work with business partners and other team members to make sure designs meet the proper balance of constraints, while remaining accessible to as many people as possible.