I can't answer from a Economics perspective specifically, but in my Biology BSc I took 'easier' modules which enabled me to get a First, and I think this has served me better on paper than a 2.1 with more relevant modules.
This was also because I didn't know what was going to be relevant because I didn't know what I would need in the future, but it's a difficult one, because throughout my PhD I wished I had taken those other modules because it would have aided my understanding of my topic, but maybe I wouldn't have got my PhD if I had a 2.1 with those modules - so I feel your dilemma!
On your CV, you are probably not going to write which modules you took each year, so you can already write micro and macro economics and that is probably enough? I wrote 'cell biology' for example, and that could have been in first year or third year and there was no way for them to know.