Sure, no single person is completely objective, but Wikipedia is not a news outlet with Jimmy Wales as editor-in-chief. It's an encyclopedia crowd-sourced from an immense number of volunteers, all with different knowledge. So popular articles can generally be trusted to be informative, as they were overseen by many people with overlapping knowledge. Surely this is a more objective source of information than most state–run or commercial media where the voices are far fewer and often kept on a short leash of agenda by management (TRT's agenda, for example, being presenting the current Turkish government as the best possible one).