@Antmrm garp despises celestial dragons and his services were always negligible to them but he serves in navy to protect civilian this is totally different he wants to help people , even dragon got issues with holy knights not with marines . he chose to attack mariejoiese instead of nvy HQ. and dont forget even though they re just weapon of world government most of their resources are for saving people , just bcuz it shows luffy is good dosent mean all pirates are good