BRICS for what purpose ?

Since the end of the 15th BRICS summit in Johannesburg, veteran and renowned analysts and academics are gloating about expanded BRICS presented as something announcing the dawn of so called new era symbolized by a new currency alternative to US dollar and to financial and economic institutions created by the Bretton Woods agreements in 1944. The question that begs : is the BRICS a really original organization grouping members from the global south, different from other transnational organizations such for example, the group of twenty, called G20 that will take place in new Delhi, India, on September 9 and 10, or from the Group of seven, called the G7 ?  The original acronym “BRIC”, or “the BRICs”, was coined in 2001 by Goldman Sachs economist Jim O’Neill who predicted that countries of the global south like India and Brazil would emerge as key players on the global economy by 2050. The main purpose of the BRICS was to look at investment opportunities. The historical context of its emergence in 2009 was a response to 2008 financial crisis, similar context that triggered the birth of the Group of Twenty in the wake of Asian financial crisis in 1997-98 or the Group of Seven triggered by the oil crisis of 1973 in the wake of the Israeli Arab war. By looking closely to these three transnational organizations, one can discover behind their emergence, chronical, recurrent and uncurable capitalist crisis. Main objective of the BRICS like the G20 and G7, is the research of an antidote to endless crisis of capitalist system and fitting mainly the economies of the global south into global capitalist market