At the end of the day you need to run the right turbo at the right boost pressure to get the right result. Here’s an a or b question for you, which engine will last longer
A: Stock rb25 with a T88 running 14psi making a shite load of power? or,
B Stock rb25 with a small as buggery turbo running 30psi making no power?
The point here is that the tiny amount of extra pressure ure adding to the cylinders from an extra 5 or even 10psi of boost (going from 15psi or whatever really) makes a very tiny difference, like will the car last 10 years or 10 years and 2 days.
High revs, shortens engine life, detonation shortens engine life, an extra 3% (at most) of pressure on the rods/pistons does not meaningfully shorten engine life.