I tried to keep my comment objective and mentioning both sides, in an effort NOT to start the impending BB vs Powerlifter battle, which is stupid, and never gets anywhere.
That being stated:
The difference I see in your bench shirt/suit reference, is simply that the shirts/suit are legal, straps are not. Chalk also helps me lifts heavier weights, is legal in PL and Strongman. Neither BB's or PL/Strongmen disagree with chalk.
Like it's been stated before, it depends on your goals. If your goals are a pefect body, state your PR's accordingly. Inevitably, once you state a deadlift of XXXlbs, you will be asked by strength athletes if it was "raw". Be prepared.
PL's brag about the weights they move, BB's brag about arm/leg/chest size and low BF%. Neither is right or wrong, just different.
Joker