How is HFT materially different than actual front running by a broker? You might not have individual orders from your own customers in front of you, but clearl

How is HFT materially different than actual front running by a broker? You might not have individual orders from your own customers in front of you, but clearly your only interest in an equity is to find activity and sponge off a few cents by holding shares for a fraction of a second. HFT is just a legal way to pull almost the same scam.