Compassion generally means feeling another person's pain.
I don't think that you can use negative, objectifying language and feel another person's pain at the same time.
For example, consider:
(1) "Just outside of my expensive hotel, there were all these drug-addicted homeless people that couldn't even walk properly. Life must be pretty difficult for them."
vs.
(2) "Just outside of my expensive hotel, there were all these crackhead zombies shambling around. Life must be pretty difficult for them."
The second sentence in the second form is so improbable that I don't know whether to laugh or to cry.
(3) I find it strange that there is such poverty next to such wealth and that people consider it acceptable. I feel as though I've woken up in a zombie movie, but everyone else is just carrying on with their day, like no big deal.
For example, consider:
(1) "Just outside of my expensive hotel, there were all these drug-addicted homeless people that couldn't even walk properly. Life must be pretty difficult for them."
vs.
(2) "Just outside of my expensive hotel, there were all these crackhead zombies shambling around. Life must be pretty difficult for them."
The second sentence in the second form is so improbable that I don't know whether to laugh or to cry.