Right Livelihood in Buddhism: Be of Benefit Through Your Work (AN 5.177)
Some work helps. Some work harms.
AN 5.177 is unusually direct about that, and it raises a harder question: what does your work actually put into the world?
Theme: Speech
Suttas on Right Speech: speak with truth and care, avoid harm, and improve conflict, repair, and everyday conversation.
Start here when words cause regret: slow down and choose speech that reduces harm.