If you have many different ASIs with many different emergent models, but all of which were trained with the intention of being aligned to human values, and which didn't have direct access to each others' values or ability to directly negotiate with each other, then you could potentially have the "maximize (or at least respect and set aside a little sunlight for) human values" as a Schelling point for coordinating between them.

This is probably not a very promising actual plan, since deviations from intended alignment are almost certainly nonrandom in a way that could be determined by ASIs, and ASIs could also find channels of communication (including direct communication of goals) that we couldn't anticipate, but one could imagine a world where this is an element of defense in depth.

If you assign nontrivial credence to being in a simulation designed to determine what kind of preferences might be embedded in an alien civ, one way to influence things positively would be to implant in any AIs a preference for surrendering some resources to other alien technospheres, iff those technospheres didn’t turn on (or at least “left a little light for”) their creators. This would give an incentive for ASIs to preserve humanity (or equivalent entities) for diplomatic reasons.