Former Australian Senator David Leyonhjelm commits the sin of noticing:
If you have been watching TV lately, you will have noticed that many advertisements include at least one black or brown person. Some of the family scenes, such as a black and white couple with kids that are clearly unrelated to either, are artificial to the point of absurdity. Actors with black or brown faces must be getting plenty of work.
Increasing sales is not the only purpose of these ads though; what they are doing is virtue signalling about diversity. It is the same reason there are many more black and brown presenters at the ABC and SBS.
I must admit that when I initially read this I was more than a little astounded. You see, Leyonhjelm based his entire parliamentary career on being a libertarian, which is sort of like basing your entire international cricket career on backyard cricket and whether or not over the fence is out. Libertarians inhabit an imaginary world, a world only enabled by Western civilization, where people can do whatever they like in the privacy of their own home because they are all mature and everything will turn out just fine.