You forgot the relevant part of that page in this context - which is at the very top:

This article is about socialism as a historical evolutionary stage of development in Marxist theory. For broader definitions of socialism, see Socialism.:

Socialism is a range of economic and social systems characterised by social ownership and workers' self-management of the means of production as well as the political theories and movements associated with them.
The Bolivarian republic of Venezuela has socialism of the 21st century as the underlying theory; not pure Marxism.