Having a desire to increase your income is fine. For some, it is their primary motivation, for others it is a result of being recognized for producing valuable results. Each person has their own moral code; for some, even working for Google or Facebook falls outside of that code.

I have worked with various companies that have contracts with the US military and other agencies. I wouldn't say they underpay. I would actually say they pay pretty well, but once again, this has to align with whatever your personal values are. Some people are quite happy to work for a three letter acronym agency and couldn't ever conceive of working for a FAANG or a foreign entity.

I am sorry that a general perception of Americans might be that we are mercenary and will run after the highest paying opportunity. There are 300 million of us, and I would say that a majority of Americans are driven by values that don't include the theft of national intelligence assets or chasing after money no matter the consequence.

"Few men have virtue to withstand the highest bidder." -founding father and first president of the United States of America

Is income really the only signifier of what makes an activity loserish to you? Not who they work for, the work they're doing, who it may target, the rules they may actively be choosing to break in the process, etc.?