I'm bootstrapping a niche B2B service. In this space I have the luxury of not relying on google for leads; word of mouth referrals have generated consistent growth by bringing in clients who initially need a few hours of consulting but eventually transition to being customers of my service.
Because my webpage is more of a statement of legitimacy than a sales tool; it doesn't need to rank on google. By the time my clients need to access my website for some information, they know my domain because they've already corresponded with me via email.
Since I haven't needed google's help for my business to grow, and I believe their level of dominance is bad for the world, I use robots.txt to block google's crawler, and generally do anything to avoid receiving any help from them.
This strategy could work for a non-SaaS/consulting company too; if I were running a bike-repair shop on main street, I would build my business through word of mouth promotion within niche bike communities to generate referrals. Once a neighborhood, city, or region full of people trust your brand, a negative yelp review or a google algorithm won't sink you.
If google doesn't build your business, it can't take your business away.