Members of the Public Accounts Committee said they will want more salary details when Rehab management appears at a hearing in the coming weeks.
Chairman John McGuinness made his comments following the charity board's revelation yesterday that CEO Angela Kerins is paid an annual salary of €240,000 – and her pay deal also includes a pension contribution and use of a company car.
Management said it does not intend to publish details of other top level remuneration until 2016. However, McGuinness said that is too late for them.
Mary Lou McDonald, also on the committee, said that "as a matter of basic cop on", charitable organisations "shouldn't add up to a scenario where the person at the top … is in receipt of a higher salary and rewards package than not just An Taoiseach, but than Barack Obama, the leader of the free world."
The Minister for Public Expenditure and Reform, meanwhile, said that any group in receipt of public money should have their salaries published.
Speaking on his way to this morning's Cabinet meeting he said "that should be a matter of course from now on, so that there should be no requirement for weeks of delay in these matters."
"I think that's the way things are happening now."
His comments were echoed by Tánaiste Eamon Gilmore, who said there should be transparency about salaries across the voluntary and state sectors.