Historically, government intervention at all levels, but certainly at the national level, played a tremendous role in building the fabric of western Canada from the railway through to the oil and gas business through to the wheat board and all of the areas that are considered to be the jewels of the west.

Based on the paragraph above can we conclude that "Historically, government intervention at all levels, but certainly at the regional level, played a tremendous role in building the fabric of western Canada."?
No