The phrase "epitome of brutal economy" can be replaced with several synonyms that convey a similar meaning. Some possible options include "personification of harsh frugality," "model of ruthless austerity," "embodiment of unyielding thrift," or "standard of unrelenting efficiency." These phrases all suggest a focus on extreme cost-cutting measures and strict adherence to budgetary constraints, often at the expense of other considerations such as employee well-being or environmental impact. They convey a sense of merciless practicality and a single-minded pursuit of financial goals above all else.