"worked for good" is a grammatically correct and usable phrase in written English.
It is usually used to indicate that something has had a positive result. For example, "The extra effort she put in really worked for good and she achieved an outstanding result."
I only worked for good escort places.
"He's worked for good managers, been in World Series games, and there's nothing he can't handle.
"Silver, by itself, was a neutral force; whether it worked for good or evil was determined by the men who used or misused it," wrote the economist Roy Jastram in his 1981 history of the metal.
It says, 'In all things, God works for good for those who love him and seek his purpose.' Everything that's gone on with this organization has worked for good.
Ms. Felsenthal suggested in her book that Mrs. Schlafly's impatience with women who denigrated homemaking stemmed in part from her mother's wish that she could have kept house and worked for good causes rather than report for work six days a week.
When you're older and retired you don't want to think, "Well at least I worked for good health care," (well at least I hope you don't) -- everyone strives for that soul-rattling experience, even if they don't voice it, so donate a few hours and I'm sure you'll find it.
"I prowl around to make sure people keep working for good," she said.
In games like this we just want to work for good drive starts and field position.
Here I also think of all those who work for good communication, whom I thank for their important service.
It was very hard but it taught me a lesson: you need to work for good people".
The Chamber of Commerce of the United States, "a national federation working for good citizenship, good government and good business," was founded in 1912.
