That's also another positive feedback loop between being "evil" and a consultant job. If your work is perceived as "hard" and you let your client do the "easy"

That's also another positive feedback loop between being "evil" and a consultant job. If your work is perceived as "hard" and you let your client do the "easy" part, then you can increase your fees (bigger impact, and more ownership for them). If your fees are higher than normal, then your client doesn't want to bother you with the "easy" stuff. You get hired to do the "hard" things. Doing "hard" things often involve saying no to spurious/out of scope requests. Etc etc...