When I made consumer electronics our production team would swap parts based on cost. 1c on a million units is $10,000. They only had to save a few cents a year each to easily pay for themselves.
The rest was margin for the business.
Saving cents on a $80 BOM (bill of materials) may not sound like much but it really does add up when you're doing volume manufacturing.
Once, the production team swapped a component as part of a running change and it took a programmer nearly a month to write the new driver.
I think we still came out ahead in the end but there was some worry along the way as it wasn't clear how long it was going to take.
And at that size, compression more than doubles what you can pack alongside the kernel.