Bríd Smith says her party wants to see a living wage of at least €15 introduced.
The Solidarity-People Before Profit TD was speaking on the Ivan Interview.
"The minimum wage relative to what's required to live - with rents going up, and the cost of living going up, insurance costs, etc going up - has really reduced in its value.
"The near-€12.00 is not going far enough, so we do want to see a living wage of at least €15 introduced".
On health, she said the two-tier medical system "does not allow for a properly run health service".
"So we do need a publicly-funded, properly run health service - without the two-tier medicine level on it - that's free to people at the point of need.
"I think that's absolutely crucial for any civilised society.
"You can see across Europe how it works, why wouldn't it work here if we ran it properly?"
She said her party would create "public housing stock" that would belong to the State "that the State could regenerate to a new generation all the time".
"It can be accessible, for example, to tech workers in the city or workers in this studio who are earning 30,000 or a little bit more if it was properly delivered on a cost-rental basis".
On climate change, Ms Smith said: "We're in favour of a tax on the profits of the fossil fuel and related industry - these are the real polluters on the planet.
"They're addicted to their profits, they're one of the biggest money-making gains on the planet.
"All of these industries could well afford to have a carbon tax imposed on them, and a piece of legislation that then would not allow them to pass it on to the consumer.
"Otherwise, all you're doing is pensalising people who live in cold and not up-to standard BER rating homes".
The latest opinion poll has put the party at 2% support with just days to go before polling day.
Sinn Féin has surged into first place, with a quarter of all likely voters saying they intend to vote for the party, according to the Irish Times/Ipsos MRBI poll.
But Ms Smith claims this could help her party.
On allegations that her party is seen as a protest party that would not go into government, she said: "We have never said that we would never, ever go into government.
"What we need to see in this country is a massive shift to the left.
"And I think the recent opinion polls that see a surge for Sinn Féin is indicative of that - but it will also help to benefit people on the left like us".
She says fragmentation on the left is there "in name" - but that the parties have voted together on issues "whether it was on legislation or motions around housing, evictions, health, climate, workers rights" together.
Representing Solidarity-People Before Profit @bridsmithTD is LIVE with @IvanYatesNT https://t.co/vhbpfa0ExH
— Newstalk (@NewstalkFM) February 4, 2020
