You know there are essentially only two search engines on the internet right? Google and Bing? Microsoft is doing good and cornering market and is helping users forget that DDG and Ecosia and Yahoo are just Bing.
Who is Microsoft "doing good" for? It's not Microsoft shareholders. Bing is a money pit and poorly executed.
Do you know who benefits the most from Bing? Google. Why? Because Bing's (subsidized) existence helps create this illusion that there really is more than one search engine. Google loves that Bing exists because it nicely helps them avoid having to have the monopoly talk.