As part of my Arts degree I spent a semester as an intern assigned to an MP in the Victorian Parliament. I applied for a graduate position through a recruitment process organised by the Department. After I got the job, the Department provided guidance and training relevant to the position. Government employers seek demonstrated research and communication skills, understanding of political process, tact and discretion and the ability to quickly get to grips with an issue. They usually seek an honours qualification and increasingly, an understanding of economics - but not necessarily economists.
Arts provides communication and research skills that are vocationally essential.
The ability to write and interact effectively is a very valuable skill, particularly when combined with the kind of analytical and research capacity you can develop through an Arts degree. I would recommend an Arts degree to prospective students because it allows a degree of intellectual freedom and a wide choice of subjects. The idea of trudging through coursework you dislike or accepting concepts without much debate has never appealed to me and I particularly enjoyed the diversity of subjects and approaches that you can encounter in an Arts degree. I would recommend developing research and communication skills through a BA in conjunction with other interests. In short, the skills you obtain through a BA are an excellent foundation upon which to build a career.