See the following story from Australia:
https://www.cnet.com/news/bitcoin-boost-australia-cryptocurrency-competition-boost/Australian juice company Boost is giving away four bitcoins -- one a week, for four weeks -- to those who buy some juice and enter a code in the Boost app.
In the past, these marketing camapigns would feature a holiday they were giving away if your bought the product and entered the codes. Now it's bitcoin.
Thats the beauty of Bitcoin as with its resurgence and with how a lot of people have been using this to intensify their efforts to know and probably invest more in it. Its a side effect of bitcoin that it might be used as a marketing strategy but that is not all, major corporations would be a fool not to look into this and thus it increases the perception and awareness that bitcoin currency has on the world