Personally I do not believe you could call the development of Dense powders as being irresponsible. Some of the loading of it was definitely irresponsible, but there were ample warnings issued about its use.
A former co-worker of mine over powered a small fishing boat. Several of his friends who were also into boating warned him about the dangers of this. He laughed them off saying he always opened it up slowly & he liked how fast it moved once underway. Well one day he opened it too fast, the bow went straight up in the air & the engine pulled the whole rig to the bottom of the lake. I would not call this irresponsible on the part of the Outboard maker for building too powerful an engine for they did not recommend it for this type of boat.
Neither did the makers of dense powders recommend loading a 3 dram "Bulk" measure of their powder. Old loading instructions I have for the dense powders all give load weight in grains while those for bulk powders give the dram measure, same as black without giving an actual weight.
