The Alphabet Workers Union said on Monday that thousands of contract employees assessing the quality of Alphabet Inc.’s Google search and advertising won a raise that brought workers’ wages up to $15 an hour, following a Bloomberg report documenting allegedly inadequate pay and benefits.The Alphabet Workers Union said on Monday that thousands of contract employees assessing the quality of Alphabet Inc.’s Google search and advertising won a raise that brought workers’ wages up to $15 an hour, following a Bloomberg report documenting allegedly inadequate pay and benefits.