The problem is that when you interview you can't really judge those. At best during interview you meet a few team members for an hour each and maybe another hour during team lunch and everyone (including you) puts their best foot forward. There's no way to tell if they'll be a great team to work with or a daily nightmare.
The same goes for fun: rarely you know exactly what you'll be doing or how interesting it'll be.
The thing about money is that easy to compare. If you have 2 offers from companies that are both startups, both well funded with seemingly great people and interesting problems to solve, it's very compelling to decide based on salary, because all other aspects are hard to compare and judge before you spend a few months working at a company.
The same goes for fun: rarely you know exactly what you'll be doing or how interesting it'll be.
The thing about money is that easy to compare. If you have 2 offers from companies that are both startups, both well funded with seemingly great people and interesting problems to solve, it's very compelling to decide based on salary, because all other aspects are hard to compare and judge before you spend a few months working at a company.