We would then look at the places that you got the qualifications from. Believe me, it can make a lot of difference where you studied and the context in which the grades you obtained there are considered.
I'd also say this can apply to further study.
At the end of the day, it can be a ruthless job market out there and you need to give yourself every chance you can.
I'm not a scientist but know quite a few who have gone on to post doctoral level. Some of the best chances for further research and job opportunities as well as the perks such as conference opportunities (don't knock it, during his PhD in statistical ecology my brother went to at least Australia, America (twice), Canada and New Zealand, all expenses paid!), the better the university, the more companies will be interested in providing funding and such.
It might be you have no idea where you want to go with your career but no harm in giving yourself the best possible chance.