Double Majoring in Econ(or Math) and Philosophy

Hey all, incoming freshman at a heavy non-target(TCNJ). I'm working towards a high finance job(the dream is trading, but also looking into other higher WLB areas/areas where I can interact with clients) and I am considering double majoring in a quantitative finance major + philosophy. I greatly enjoy philosophy and logic and would specialize in that area of the subject. What is everyone's thoughts? Would I be better served maximizing GPA or would postgrad opportunities understand a 3.6-7 GPA in exchange for rigor?

Few notes:

• I am considering grinding for an Ivy transfer, but that's near impossible for business, which is where the dual major comes in handy. Finances are of no issue, I pay for college in full + will most likely be receiving a full scholarship

• Law school is also in the cards for me, 

• I have ADHD(will be on Adderall or such when college starts) and did pretty poorly in HS, but am confident I can do better in an environment more suited to strong test takers and self-learners.

• TCNJ is nowhere near a target, but we are right next to Princeton for OCR, our proximity to major cities is great, and we do get fair amt of Big4 recruiting as our business school is considered very good for the value.