By Tim Cocks JOHANNESBURG (Reuters) – South Africa’s genocide case against Israel may have ruffled feathers in the capitals of vital Western trading partners, but it has boosted the country’s standing as a champion of the downtrodden Global South. That gamble is likely to pay off, thanks to renewed rivalry for Africa’s minerals and U.N. votes between the West, China and Russia, turbocharged by Russia’s war on Ukraine. Regardless of what the International Court of Justice (ICJ) rules on Friday, the case is clearly embarrassing for Israel and its allies in Washington, Brussels and London. And gr…