If you're playing as a support/tank, then kills are not your goal. In addition to gold generating items, I'd also suggest the masteries that boost gold or exp on an assist.
Before the V1.0.0.116 patch, it wasn't uncommon to see AP builds on Alistar. His ratios have since been reduced pretty significantly, but it's still viable to build AP on him to increase his damage. Try it in an AI game first though. =D