The alternative is to spend less, to share resources between employees, or to rent. You can rent a much more powerful rendering farm in the cloud for less money than a full option Mac pro. Video encoding can be done in good quality and good time on a 200€ smartphone. If you push the settings to the max, you still don't need a 50k€ computer... And for software builds, just take a coffee break whenever you feel like rebuilding everything on your local machine. The company should have build servers too.