If you empty yourself (the goal), then what is "your value"? Does your life have a value, by any standard, or no standard? Why do you live? Why don't you kill yourself and get a "relief"?
If emptiness were the same as non existence, no thing could be empty, because emptiness would be non existent, yet here we are, and emptiness exists.
The same way, if something were nothing, it could not be something.
You are asking what value emptiness has. What even is 'value'?
Value is an individual projection, or belief, of an object's inherent worth. The true non existence here is the attachment of value to something through the perception of individual consciousness. The projection of value is a made up mental fabrication.
Should I count up the value of empty space?
What benefit does it bring me?
Emptiness is not the same as non-existence, nor is emptiness the same as nothingness. For something to be nothing, it cannot possibly be empty. Emptiness is contained, or seen, or visualized. The emptiness of space is indeed emptiness, but space is not nothing, or more aplty, space is not non-existent. Space exists.
Recognition of this conscious conceptualization, whereby people create illusions for themselves, is what 'emptiness' in Buddhism means. Every external thing is perceived by an individual, and the beliefs arising and being bolstered by that perception, is the arising of self.
Self leads to suffering.
If I deconstruct that self in a situation, like here, then there is no attachment, no offence, no clinging, no suffering.
If you yourself ascribe worth to a human life based on an individual's beliefs, then you do so on the basis that you make up a concept of worth, and subsequently believe that you are more worthy than anyone else is - as your beliefs are opposed in your mind against their beliefs - or just as worthy as them, or not as worthy as them.
I myself decide to do none of the three, because each begins with ascribing a made up concept of worth to a person based on their beliefs.
Recognizing the 'made up' is recognizing its emptiness.
A better word might be that making up a system of worth like this is 'pointless'. When I recognize the pointless facets of existence, what is left are the truths and realities.
Ascribing worth to a person based on belief is a pointless fabrication. Why do it, then?
That's what 'emptiness' is about.