A competently trained engineer who works with distributed systems may implement a trivial fix and save her company tens of thousands of dollars in AWS bills.
Someone with a strong background in programming languages might implement a PHP -> C++ cross-compiler and double the throughput of her company's web servers.
The capability to recognize these improvements does not require some inborn spark of genius. Rather, it requires the prerequisite experience in some programming sub-field. Experience which can be learned.
Moments of rare insight do happen - "hey what if we cross-compile all this crappy PHP to C++?" - but these are a matter of random chance: get enough folks with programming language expertise working on a strictly PHP codebase and eventually someone will have the idea.
The "born programmer" is a myth. A great programmer is often a person with a high level of training in some particular sub-fields, and/or, a person who is very savvy regarding the craft of building software (i.e. "The Pragmatic Programmer").