[split] "Some people eat animals, some don't."

[Minyatur]

I do not think any suffering is in vain, one of the things I've tried to put focus on in this discussion is that it is a rightful experience of those who experience it. 

If they are serving by offering an opportunity for others to choose compassion, and the others don't, then it is wasted catalyst...so they have suffered in vain. Not all catalyst gets utilized.

They are serving themselves in experiencing first hand what suffering is as a mean to give shape to their soul.

As such in my view you do perceive a building block of someone else's path as vain and that is pretty much what I meant by belittling others' path.

It appears that you have misunderstood my use of the term 'in vain'. NOT 'vain' as in 'vanity' but IN vain, as in, wasted.

in vain,
without effect or avail; to no purpose:
lives lost in vain; to apologize in vain.

That is exactly how I saw it. Others' experiences being a waste pretty much means belittling their path in my view.

In my view, if the whole point was compassion we wouldn't have evolution going beyond 4D.

Compassion isn't the 'whole' point of all densities. But it is a key point of 3D, for those on the STO path.

That's the reason STS entities serve by harming/controlling/enslaving others...to provide an opportunity for the STO entities to learn compassion and love. Each serves the other in their own way.

This is why harming/controlling/enslaving are inherently STS attributes.

...

I don't think their purpose is to provide opportunities for STO entities to learn compassion and love... They probably have other things in mind and are learning love in their own way at the same time.