In your opinion is it possible to avoid a clash of values in public service? Is it desirable?

Probably not. But it would depend on your moral values and what department you worked in.

What clash of values are you referring to? I work in public service.

It's really quite scary when these questions are posted, as they are so obviously homework, and in this case MBA related, yet the OP clearly has absolutely NO idea what they have typed.
Lets all copy our homework with zero comprehension of the actual question being asked!!