I just found that Rightous Fury rules say:
"When rolling damage after a successful attack..."
That seems to imply that if there is no attack roll, you can inflict RF. Since Flamers and Psychic Powers (*) don't have an attack roll, they shouldn't be able to inflict RF on the targets.
What do you think? Am I mistaken?
(*) Focus Power Tests aren't attack rolls, I think. Although that could explain why some powers say that it's a Ranged Attack (like Force Bolt). I think such powers are intented to inflict RF. On the other hand, powers like Telekinetic Crush shouldn't.