Do healers have a place in PvE?

[16bitBounty]

Aero, Tab, Aero, Tab, Aero, Tab, Aero. You'll get gold every single time without every pulling aggro. On single target fates drop an Aero then spam Stone II until it's over and you'll pull gold.

[Tlamila]

Aero, Tab, Aero, Tab, Aero, Tab, Aero. You'll get gold every single time without every pulling aggro. On single target fates drop an Aero then spam Stone II until it's over and you'll pull gold.

I stole you this trick and now I always take gold again.
Yes I said again for a reason. I used to always take gold at lower levels, just by healing people for most of the fight. It apparently works. Then someone told me fate rewards were based on dps delivered...and trying to achieve that I started taking low rewards. I needed this thread to know how it works apparently.