Blockchain Analysis companies spread terror and do nefarious things too. They are working against individuals and specifically against their Privacy, which to me qualifies under the term 'nefarious' very well. These companies are any thing but Saints or Innocent if you ask me.
Sadly, we have reached a point where, if you want privacy, it means that you are hiding something because why would a "normal" law-abiding and innocent citizen want privacy? This isn't me speaking, it's them. Substitute "them" with whatever you want. Someone who wants to stay private will therefore be considered a potential threat and enemy to Big Brother, and you will then be targeted or sanctioned for not showing them what they want to see. From their perspective, blockchain analysis is an important cog in their machine and not something nefarious. You, on the other hand, are a fascist right-wing who is threatening democracy. What a great time to be alive.