More seniors who spent much of their careers as corporate managers and professionals are competing for low-wage jobs. For these growing ranks of seniors with scant savings, it's the end of retirement, Bloomberg reported. About 7.2 million Americans who were 65 and older were employed last year, a 67 percent increase from a decade ago, according to government data. Yet 59 percent of households headed by people 65 and older currently have no retirement account assets, according to Federal Reserve data analyzed by the National Institute on Retirement Security.