Sure, but it can still affect other players who have to, as you say, act defensively to your actions. If you change home system and start to bounty hunt there, you will be working against someone who tries to make it into an anarchy. If you happen to settle where the BGS is already settled and do missions that support the status quo then you won't have much effect, no. If you settle somewhere else, you do very much affect whoever might try to work there.Influencing the BGS is not the same as playing the BGS.
I accept this happening, but I also accept all forms of PvP. I don't think it's a straw man to try to be consistent in your arguments and behaviours. I often see people why speak out against "griefers" imposing "PvP" on others who don't apply the same logic to BGS. Both "waste" your time and credits, both are part of the game.