[Suicide Junkie]

Also a +1 sector bonus seems very small... and doesnt make it worth the effort. And it doesnt make sense to build it on a planet... at least not a planet with an atmosphere.

Maybe. But consider the advantages:
You can launch instant (one-turn) attacks against targets +1 square away.
You'd also get +1 movement in combat while defending the planet.

And you can always increase the ability amount to whatever value you feel is fair.