If true, Google just shot itself seriously in the foot.
Many moons ago I switched to Google from Yahoo specifically because they didn't pull such crap.
A search engine that gives preference to paying clients immediately loses all credibility.
I stopped using Google about a year ago.
Got tired of the direction they tried to guide me into.
It's just on the shopping side. The organic search you use when you want to find something still appears per their page rank algorithm.
Giving search results pushing a leftist political ideology is not wise, either. Identifying your brand with radical Obama, socialism and the jihadist Arab Spring, is not wise either. But Google did it.