Baidu and Wallah did not "steal code" from Google and Yahoo. You can argue they "stole" ideas of search and portal, but that would imply there's ownership of these concepts and it belongs to Google and Yahoo - which is wrong on both counts, both ideas existed long before their implementations by current kings of the hill, and nobody owns them.
If you think copying Google is "dead easy", you're well on the way to become a multi-millionaire. I've tried recently a number of emerging search engines, and none of them is as good as Google, despite the fact that copying PageRank is supposed to be dead easy. On the other hand, I'm sure Google's understanding of Chineese or Hebrew or Russian is not perfect and specialized engines can do much better (I know about Yandex on Russian market, but I'm sure there are more).
There's a place on these markets for much more than one player, so treating everybody being in the same search engine market as Google as "stealing intellectual property" makes zero sense. It's like treating everyone that makes smartphones as "stealing Apple's intellectual property". Maybe some hardcore Apple fanboys think that way, but this is not useful for anybody but them and Apple, certainly not for the consumers or for the public.
As for "respect for intellectual property", I don't see why Chinese should necessarily respect artificial mental constructs that were erected by Western politicians in order to produce some utilitarian value. These things are defined as utilitarian, the only reason that is being argued of why somebody can use the idea and somebody else can not is: "To promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries". If Chinese do not agree that this would promote Progress and useful Arts for them, why they should feel obligation to respect it?