Jobs where the difference in output between the best and worst is 10x. Generally creative professions like movie director, writer/journalist, lawyer, etc. SWE tends to fall into this category because the difficulty of writing good code is in some respects like writing good prose: the space of "solutions" is vast and there are few well defined rules by which a "good" solution can be constructed. Not only that, but writing it quickly while maintaining quality is difficult as well.

See for example this blog by Joel Spolsky [1].

[1] https://www.joelonsoftware.com/2005/07/25/hitting-the-high-n...