I'm not saying you can't introduce new ideas into your organization, but this is where the politics of development comes into play. You need to get buy-in from your team and management, otherwise you're intentionally hurting your organization.
You become critical in the short term, but also critical to the business to replace in the long term, in the same way that a vendor tripling their price often results in short term profits while customers transition off of them, leading to a long term decline in revenue.
You become a single point of failure for the org, so you're more important, but you're removing value from the org because you're making it more difficult to scale the organization.
Some places have toxic cultures so that's the norm, but if you're fortunate to be at a better place, don't force their hand to go down that route!
(There's also the aspect where if you're the only person who can do X, but now someone needs to do Y which will actually be ten times more valuable to the company than X, you've closed off that opportunity for yourself!)