Timothy L. Cole didn’t work for chump change. He told one associate he wouldn’t be in the escort business if it didn’t generate a six-figure income for him. For most of its existence—from 2004 until Cole’s arrest last year—Rose’s Bad Girls lived up to Cole’s expectations. A front for a prostitution business that used up to 25 women housed in western Henrico County hotels along West Broad Street, Rose’s easily generated more than $200,000 a year—more than half of which went into Cole’s pocket, Henrico prosecutors said yesterday.