I agree that the employee's purpose is to bring value. The question is, now that AI can generate code that's good enough to get by, is there enough value that a software developer brings to justify their continued employment. IMO, the answer for most software developers is no¹, even the ones eagerly embracing AI, so the smugness of AI adopters is likely unwarranted.
The notion that more work will spring into being to justify their continued employment is wishful thinking, particularly if AI keeps improving as fast as its promoters claim. Supporting themselves by creating their own new software businesses is also wishful thinking.
¹ Probably including me.