Come At It From The Wrong Direction

Some religions advocate belief. And put all other religions into "alternative belief". Like pantheon of gods. Why believe in them when you can believe in "the one"......

Well

It's not about belief

The mechanics matter. For all the non belief religions. They're in the real. That's what they don't tell you.

The real is that Dike represents justice. And so you invoke her to represent justice in your mind. Naming her makes justice real. It's not about whether she exists in reality (or in the supernatural). It's about her image. And her image in the mind is real.

So in Greek pantheon, Dike isn't meant to be supernatural. No belief required. She is real in your mind.