Are you sure about that? S7 is among the toughest steels in the world,. However, whereas, the Dogfather cut 300 slices of rope and shaved hair, the Basic9 cut almost 3,000 pieces with no degradation and it's not as good as INFI. So you can see the difference in wear just by that sample. The DF may be as tough but INFI will still be the leader in wear resistance, edge strength and corrosion resistance as well as lateral strength which is different than toughness.
Remember the AK test?
Here is a SHBM being bent by someone and I cannot remember whose knife this is