They'll still go- we profile 90% of all our fittings these days but in the past everything was punched. Rafter end plates could easily go like a banana if punched from one side so we'd either straighten in the press brake after or mark out and punch from each side.
Handling of structural steelwork during the fabrication process is one of the most costly elements in that generally each movement doesn't add value to the part, hence the thinking for a streamlines production where steel is physically moved the absolute minimum amount of times. Some companies will even go to the extent of having artic sized cradles that are stacked with finished steel then craned onto the lorry in one lift thus saving all the crane lifts required to manually load a lorry.