The issue there isn't that you've 'stolen' an idea, it's that you've lied about creating the idea.
The reason patents and copyright exist is to artificially create scarcity where there otherwise wouldn't be any. That's not neccesarily a bad thing (because there are time limits after which the ideas are freed), but I think it helps my point.
The USA and China are outliers when it comes to requiring public displays of loyalty to the state, this isn't normal behaviour and shouldn't be encouraged.
Not if you are being compensated for your labour. The actual crime that describes stolen labour is "slavery"