
It doesn't mean that we preach. It doesn't mean we proselytize clients. It doesn't mean we pontificate. It means that in going about our business we walk the talk of the American Progressive Movement in the 21st Century.
The movement has a complex origin and contested definition, with factional leaders vying to imprint their own stamp. But, as much disagreement exists, there is broad consensus on several key points.
Progressives above all value diversity. We believe that our differences are our strengths, not something to fear. Progressives also believe in social progress, as defined by progress toward a truly egalitarian society which has its goal an inclusive prosperity.
We believe that this inclusive prosperity can give a fair and equal shot at happiness and fulfillment for all people regardless of ethnicity, gender identity, sexual preference, religious beliefs, or adverse circumstances of birth. And we believe in public policy as the vehicle to bring about an inclusive prosperity.
Many progressives like me take the above views even further, toward a kind of holistic quest for planetary happiness for all the other living things with whom we share this fragile Earth. The best English term we have for that is “environmental consciousness.” Native peoples, and the great Eastern religions, have been concerned with the subject for millennia.
Right now you're asking, “What the heck does this have to do with web design?”
Tons, actually.