The problem is that you don’t understand that 1 m = 100 cm = 1000 mm. And “Length” parameter just a visual representation of units.
You can choose Unit Scale whatever you like or need for your job. I also work with Nuke, often getting models from Maya and 3DMax, sometimes do models for UE – no problem, at all. Nuke and Blender use 1 meter as default. For Maya and 3DMax you can also use 1 meter scale as default or you can adjust Blender Unit Scale to match pipeline.
Blender has much bigger issues with simulations, caches and other things that actually affect production.