Australia is sidelining the idea of “fair” or “inclusive” economic growth in G20 discussions this weekend, civil society leaders have alleged.

Tony Abbott has said the first aim of the G20 is to “promote economic growth and jobs growth by strengthening the private sector” and on the weekend, leaders will unveil the “Brisbane Action Plan” which compiles the individual policies they say will increase cumulative growth in their economies by 2%.

But the co-chairs of the civil society groups advising the leaders, the so-called C20, say Australia has downgraded the commitment of previous G20 summits to “inclusive growth”.

World Vision chief executive and C20 chair Tim Costello told Guardian Australia, “It appears the language about equality and inclusive growth has been taken out and we are hearing that is at Australia’s instigation … we are hearing the Abbott government doesn’t like that language.”

Oxfam has released a report stating that in the year since Australia has held the G20 presidency (between 2013 and 2014) total wealth in the G20 nations increased by $17tn, but 36% of that amount went to the richest 1% of citizens in those countries.

“Extremes of inequality are bad for growth and bad for achieving cohesive, democratic societies, and undermine future growth,” Oxfam argued. The report also shows the use of tax havens and tax-dodging by multinational corporations is costing poorer countries $US100bn each year.

The other C20 co-chair, Cassandra Goldie, criticised the Australian government for reportedly including its plans to cut unemployment benefits to young people in the list of policy measures to promote growth.

After last year’s G20 meeting in St Petersburg, the communique stated that, “We still need to work to ensure that growth is strong, sustainable, inclusive and balanced.”

G20 nations have submitted more than 1,000 new policies to try to meet the target of increasing their collective economic growth by 2%. The policies have been vetted to ensure they are specific and additional to what had already been planned, and will be released at the G20 meeting on the weekend.