People seem to vastly oversimplify Kurzweil's (and others) stance on the singularity. The truth is that we don't know what will happen. The best one can do is prepare for possible senarios.
The second-best possibility is that intelligence is possible without consciousness ("really powerful optimization processes") and no one creates people AI before we are adept at using RPOPs to further our human goals.
Both of these seem like wishful thinking, unfortunately. I don't have any idea how to push the future toward one of these outcomes.
Granted, there are "irresponsible" researchers who don't understand that an AI might not have "gratitude" that prevents it from rm -rfing humanity like a bad shell script, but others work on 'Friendly AI' to mitigate or eliminate this concern.
http://en.wikipedia.org/wiki/Friendly_artificial_intelligenc...
http://en.wikipedia.org/wiki/Friendly_artificial_intelligenc...