It's more worker/voter welfare than corporate welfare. Socialism for the middle class.
Lockheed Martin's long term profit margin is around 6-7 percent (recently above 9%). Lockheed pays more wages than it makes profits.
If you count the whole value chain, with contractors and their subcontractors, it's probably something like 50% total worker compensation (wages, benefits), 10% profits, 10% cost of capital, rest is taxes, real estate, energy and raw materials.