Most projects rebuild their visuals from scratch every time something changes. A master scene inverts that: the model, materials, lighting and cameras live in one Unreal project that stays current for the life of the scheme.
From there, output is a question of what you need this month rather than a new commission. Stills, films, interactive tours and virtual showrooms all come from the same source, which means they agree with each other and with the design. When the scheme changes, the scene changes once.