On one side I would say that this the most authentic course of action. But that doesn't suddenly shift all the responsibility to the expert. The power relation

On one side I would say that this the most authentic course of action. But that doesn't suddenly shift all the responsibility to the expert. The power relation and degree of freedom between those who hire and those who get hired is often asymmetric. The ones who hire usually are the ones who make the decisions, so they should be held accountable for those. Now of course if the expert does have a sufficient degree of freedom then they become complicit.