Sig secured contracts for the Modular Handgun System (MHS) competition, with an objectively inferior design compared to every other entry, as well as the Next Generation Squad Weapon (NGSW) program with the Sig MCX Spear firing an objectively worse proprietary cartridge with higher pressure (lower parts lifespan), more recoil and weight, and less capacity. This design takes the firepower and weight of light arms design back to the sixties when battle rifles were still issued. We've forgotten what we already learned decades ago, standardized intermediate cartridges have a plethora of benefits in combat and logistics.
Sig also won contracts for suppressors, optics, and probably more I'm unaware of or can't remember. Unit cost of the M7 is several times higher than the M4, it's heavier, has more recoil, carries less ammo, and the cartridge it fires is still stopped by commonly available body armor that's manufactured today.
Corruption is obvious in my mind, it's shocking Congress seems either oblivious or so complacent.
The intermediate cartridge doctrine is evolving as a result of improvements in armor. M855A1 5.56 cartridges fired out of a long (20") barrel may have success against modern armor, but slightly larger intermediate cartridges (6 and 6.5mm) are being adopted for supposedly superior performance. That doesn't excuse the weird 6.8 fury cartridge Sig designed around though.
The requirements may be goofy, but that's a requirements problem and not a Sig problem.