I think it's a lot more nuanced. If you're joining LargeTechCo as one of thousands of entry level new hires, then reneg on an offer accept, I don't think that's

I think it's a lot more nuanced. If you're joining LargeTechCo as one of thousands of entry level new hires, then reneg on an offer accept, I don't think that's a big deal. But let's say it's a startup that put considerable effort into hiring you, and turned down other candidates, and you reneg just because you got a slightly better offer? You'll probably burn a few bridges.