Once saw a guy bragging about his new knife. And man that knife sure did cut. At least it did until he dropped it. Ceramic blade when ceramic blades were new, very expensive and just a little more fragile than they are now. Guy just about cried. Expensive it not necessarily a sign of quality or appropriateness for any particular situation.

As for negative gear. Well ... it is a general quality of gear to be either useful or less than useless. Rare indeed is the piece of gear that is entirely neutral and so only useless. It is in the nature of matter to have mass and take up space. Something that is functionally useless still makes the bag heavier and gets in the way when your digging around for what you need.

And don't underestimate the negative effects of bulk and weight. The ideal kit would take up no room and be entirely weightless. As the kit gets bulkier and heavier the odds of it getting in your way and so getting left back in the truck or at home go up. A kit at home is less than useless when your out and around. You still have the memory and inner glow of one who is 'prepared'. You may inwardly feel prepared. Even when your not because that do-everything kit of yours was so big and heavy that you left it behind.

In the end a small and far less comprehensive kit would work better for you if it means that it is with you when you need it. A $10 pocket knife in your pocket is always going to be better than a $500 one left back at the house.