Right, I've been thinking a bit and I have an idea why Doug might not be eligible for the Good Place:
It was established early on with the points system that there were huge, world-changing things that got you an awful lot of points, and *also* that the points threshold for entry to The Good Place is particularly high. We've heard - possibly true, although Michael could be lying - that Abraham Lincoln made it to the good place, and Mindy St. Clair could have done so had her master plan been carried out before she died. It's been suggested that hardly anyone gets into The Good Place, but what hasn't quite been explored is why that's the case.
What I'm thinking is this: we're looking at a (loose?) metaphor for privilege: the way The Good Place is functionally unfair is that the average person simply does not have the opportunities in life to get enough points to merit getting in. A president has the power to do so; a (presumably reasonably wealthy) lawyer can seed enough capital to get a plan under way, but a person like Doug, well-meaning though he might be, while he might be able to do hundreds of thousands of small +point actions, just doesn't have the life opportunities to get any large-scoring awards under his belt.
If you're poor, if you're powerless, if you're underprivileged, you have no chance.
I could see that working as a moral stand the show wants to take through the use of metaphor.