Yes from what I've seen the ministries are split into families, teenagers, seniors, Spanish-speaking, missions, sports etc. Seems like that would have serious pros and cons.
Another underreported part of the value proposition is that single/divorced/widowed people can find partners/spouses via that church and its social events (and it gives some basic implicit level of background verification, more than dating apps).
This is likely gradually becoming more important in part as civic engagement and volunteering are reportedly decreasing in recent decades, esp. in the US. [I looked for studies but didn't find much.]
At the extreme cusp of megachurch/influencer, Hillsong Church NYC's (ex-)pastor Carl Lentz [0] befriended[/recruited/targeted/whatever verb] Justin Bieber (baptized him in an NBA player's bathtub) [1] and other celebrities [2]. The term "hypepriest" was coined [3]. "Marketing lessons from a Southern megachurch" [4] is an interesting read; the degree to which church preachers and Instagram influencers have things in common depends presumably on the type of church, which demographic it might be targeting and how narrowly, its KPI, the preachers' compensation incentives, social-media presence etc. Haven't seen much study of this, presumably because much of the data is not public. But as the concept of social capital is being redefined in the internet age, clearly there are long-term implications.
[0]: https://en.wikipedia.org/wiki/Hillsong_Church
[1]: https://www.vox.com/identities/2018/10/1/17596502/justin-bie...
[2]: https://www.usmagazine.com/celebrity-news/pictures/stars-who...
[3]: https://www.gq.com/story/hypepriests-pastors-who-dress-like-...
[4]: https://medium.com/@greenglassheart/marketing-lessons-from-a...