Engineering what is engineering it could be someone crunching numbeant in an office somewhere in the world.
Could be taking measurements ensuring quality of data and repeatability.
Publishing Drawings for a installation.
Conversing with vendors to ensure a design is correct and best practices while meeting all relevant standards with safety at the forefront.
Eventually the mighty dollar wins the arguement and when looking you ask yourself why..
It comes down to someone will supply a design that meets the financial requirements and is "fit for purpose"
which invariably means spent a lot of money for something that isn't really good quality, easy to maintain, service, life cycle friendly, expandable and any other best practice engineering concepts.
As we are not engineers we can provide real world comparisons and design philosophies that meet a lot more than "we got that cheap" because the poor man pays twice. Environment is one of the most overlooked and understood effects of a process.