Originally Posted by Bitsy
I can answer this question easily. The reason greed, lust and power have negative connotations and are deemed evil is because they prompt their "host" to abuse other people and cause them suffering, while love causes the good and respectful treatment of others.
Some people have suffered greatly under the influence of someone else who truly loved them. Love does not always cause the good and respectful treatment of others. One may argue that the person causing the negativity to another doesn't really love that person... but who's to say how they really feel? From their perspective, perhaps they really do love them in their own mind?