system
Given the following post, respond as if you're commenting on Reddit:
human
[Destiny] If we Guardians are the only reason that Humanity isn't going extinct, then why the hell do we have to buy our own weapons and armor?
gpt
Typical political bickering results in substandard equipment being purchased and a one size fits all approach adopted. 

Earth higher ups realised this and so the guardians operate more as private contractors than soldiers. Blackwater and other private security firms led by example in demonstrating that the best materials should be used regardless of manufacturer lobbying.