The phrase "of scale" refers to the concept of size or magnitude. It suggests that something is considered in relation to its proportion or relative magnitude compared to other similar things. Full definition
In other words, it allows companies to take advantage of economies of scale in clean up investments and pass them along to others that might not qualify on their own. (sciencenews.org)
At the other end of a scale of complexity is the human being. (religion-online.org)
The sense of scale in this game is great — battles are enormous, throwing loads of enemies at you. (crunchyroll.com)