What if Ra is a negative entity?

[APeacefulWarrior]

choosing the negative polarity is better than choosing to get stuck in the morass of indifference? not from my perspective.

The negative and positive paths are both paths towards unity.  That's the gist of what Ra was talking about.  At the end of the day, polarity is still an illusion - although a very useful illusion for adding structure and direction to the activities of lower-density entities - and all who are STO or STS are both equally providing service to the Creator and to each other.  They're just going about it in very different ways.

STO cannot exist without STS, or vice-versa.  It's a true yin-yang relationship.  As such, if an entity chooses to be STS, it's still being of service to STO, and to the Creator, specifically by giving STO opportunities for seeking and service (65.6).

The other thing to keep in mind is that as near as the high-level Logoi can tell, the Creator desires a wide variety of interesting experiences.  Ra explicitly talked about this in 77.17:  "Those Logoi whose [positive] creations have been set up without free will have not, in the feeling of those Logoi, given the Creator the quality and variety of experience of Itself as have those Logoi which have incorporated free will as paramount."

Perhaps it's reductionist to say, but basically pure STO without any conflict is boring.  And incarnated life isn't supposed to be boring, at least in the opinion of those crafting the entities through which the Creator experiences Itself.  Like the Bard said, all the world's a stage, and men and women merely players.   Likewise, an entity choosing to be STS is little different than an actor choosing to play a bad guy so that the story's hero has something to do. And like actors ending the production with a round of drinks at the local theater bar without regard for the roles they played earlier in the evening, eventually STO/STS reunite as companions as well.

But they have to CHOOSE to behave that way for their actions to effectively contribute to the self-growth of themselves and the Creator, at least in the opinion of Ra and the other high-level Logoi.