Plested said Mainfreight believed a significant factor in its financial success had come about through profit sharing with its staff.
Its discretionary annual bonus was $27.2 million in the 2019 financial year, up from $20.7m the previous year.
Plested, co-founder of Mainfreight in the 1970s, in its 2017 annual report called on politicians to fix New Zealand's "social disgrace" around housing.
Given 2017 was an election year, he said it was worth asking questions of politicians.
Normal housing in most parts of the country cost some 10 times the net annual income of the people seeking to buy homes, Plested wrote.
He called on local and national politicians to take action because the market could not sort out the problem. Plested that year also singled out education and the environment as areas needing urgent attention.
In the 2019 annual report, Plested noted that Mainfreight's favourite charity Duffy Books in Homes would mark 25 years of giving books to children in low decile schools, and to early education centres.
The charity would this year give out its 13-millionth book to a child.
The charity worked out of Mainfreight sites in New Zealand, Australia and the US.
Plested said the charity was always seeking new sponsors and if like him, readers believed that education was the solution to most ills, they should contact Duffy Books in Homes.
Mainfreight's global sales in 2019 nudged $3b. The company achieved $1b sales in 2009 and six years later posted $2b of sales.
Its income tax payable for the 2019 year was $54.5m ($45.4m in 2018).
EBITDA for the year increased $42m - $30m of which was generated by Mainfreight's overseas businesses.