There is a set amount of wind tunnel/CFD time that teams are allocated. The higher in the constructor standings, the less time you're allocated. Intended to be a way to give teams lower in the standings greater opportunity to develop and tighten the gap to the top teams.
At the end of the season there is prize money awarded based on placement in the constructors standings. 1st place get the most, 10th the least.
So essentially, there is a financial reward to finishing higher, but a development "reward" to finishing lower if that makes sense? Which is why I was saying it's maybe a "benefit" to finishing lower if you're a team where money isn't a concern, like Ferrari, if you're not going to be the winner. Some midfield teams really can benefit from the prize money though. It can be the difference between being able to spend at the cost cap or not for a few of them.