It depends more on what you plan to study at university (and where) than what you final career aspirations are. However, if you want to study law at a top university then they might not be ideal choices. Firstly, law A level is not only unnecessary to study law, but is also often seen as a 'soft' option. As such, coupling it with sociology (another supposedly 'soft' and less well-respected subject) might not be in your best interest - top law courses tend to be quite competitive. You might do better with more 'traditional' essay-based or science subjects - English literature is certainly well-regarded for law.
That said, I'm not sure to what extent these choices would affect your application provided you could do well in them.