Compliance with ISO 37001 for example. As a big company, you can’t just go around and bribe random border guards to get your stuff through.
I’m also not sure if it is illegal to pay bribes in other countries when you’re an American company. So compliance with laws is another problem when paying bribes.
Edit: https://en.wikipedia.org/wiki/Foreign_Corrupt_Practices_Act
Looks like it is explicitly forbidden to bribe foreign officials as a US entity. Not very smart to suggest you’re bribing people in other countries in official communications.