In my country influence peddling is called traffic of influence, it is considered a crime, and punished accordingly.
As regards lobbying, there's no such a thing as this in my language, let alone a law that would define it. However, lest you judge me too harshly, let me offer a pertinent fact: the concept is barely understood even by many experienced people. Here I'm talking about Lobbying in the United States:
It is highly a controversial phenomenon, often seen in a negative light by journalists and the American public, and frequently misunderstood.
I read this article, as well as consulted the online dictionaries and noticed that the main difference consists in the following:
Lobbying is defined as an attempt to influence, seek to influence, try to influence, to apply pressure or influence whereas influence peddling is defined as involvement in, that is, improperly influencing or is the illegal practice of using one's influence in government or connections with persons in authority to obtain favours or preferential treatment for another, usually in return for payment.
So, what would be the difference between the two concepts, when can we say that lobbying crossed the line?
Please let me know your thoughts on this in terms of language.