Huh. I was thinking more along the lines of subsuming the will of others and copying yourself onto them and being a bit of a semi-autonomous puppet master.
Not sure that would be unhappy Psionics or a hive mind, it would be one individual mind controlling all the others. Could really happen with any of the ascention perks.
Hell, someone forming an entire empires of their own clones would be a fun idea.
Imagine this: you have a perfect internet, so that communication is instant. You store everything on the cloud, including the OS.
Now disconnect from the internet. Your computer is pretty much useless at this point.
That is what we're talking about.
But thats not a Psionic Empire, thats just a conventional hive mind. Its not even a distributed network in my example.