Glad to see from above the support for Internal Controls, certainly makes not only the DBAs life easier, but also, more importantly, the strength of an organisation's systems' integrity.

I went into detail on this already here, with an anecdote or two:

http://www.sqlservercentral.com/blogs/hugo/archive/2009/02/15/the-importance-of-the-segregation-of-duties-with-respect-to-internal-controls.aspx

Here in Canada, we have (aka C-SOX) Bill C-158 - unfortunately, most developers here have to be convinced that this is the law and not just 'overhead' to make their lives difficult.