Response to @Deathwake (after more than a month)
Let’s start with the premise that sapience is achiavable without empathy, not even you refuted this claim since you just ended up claiming that societies can’t form without empathy.
But it is possible for a “society” to form in a non-empathetic sapient species, it could start as severeal members coming togheter to reproduce, during this time they tollerate the presence of other members of their species; during this time they might also learn from eachother by observation and replication or even because some try to attract mates by showing off new techniques or discoveries.
The parents would also teach their children their discoveries, so discoveries wouldn’t be lost.
It is also possible that they decide to extend the period of time they remain togheter to include the initial stages of child care, which will be when the children will be the most vulnerable and as such they might see the benefit in remaining togheter longer during this period of time; they could have strict rules which will probably be uphold using strenght by either the strongest member or the whole collective, and these rules would also cause them to create a more complex way to communicate in order to better make sure they follow them.
This period of time might also be extended by later generations to the point in which they still remain togheter until the children are capable to survive alone, this will cause a quicker development of lenguage and an higher spread of techniques and knowledge as now adults can learn from observing others teach their young or the young can also learn from observing others teach their young while their parents aren’t with them.
This would essentially create a society of a non-social sapient species.