Lobbying exists and is legal. Corruption is ever-present and well-documented, from 3rd to 1st world countries. Contracts are widely regarded by private industry to be obscenely overpriced at best, and highway robbery at worst. Senators are regularly known to block necessary bills to write in pet projects that will benefit their campaigns/constituents directly, even at the detriment of everyone else. Want an example? Northrop Grummond is hardly a scrappy small company, but they lost out to Boeing, even though Boeing was going to create a worse, more expensive aircraft, because senators in South Carolina didn't want their state to lose the jobs.

If you are anything but cynical regarding the government contract bidding process, you're asking to be made a fool of.