Unless you work in an industry where there is a legislated "industry standard" (such as certain types of engineering), this doesn't apply.

The company doesn’t own you just because they pay your salary. If they hired you on as a computer programmer, then you aren’t being insubordinate when you insist on following standard practices of a computer programmer.

The typical contract reads: "you'll do what we ask of you", just in fancy language. There's almost always some innocuous looking little clause that reads: "and other duties as necessary". There's seldom, if ever, a clause that says: "You can spent our money doing work in the way that you like, but we've specifically told you that we don't".

So, unless there are a specific set of laws in your jurisdiction permitting you to disobey your employer's wishes regarding the assets they've paid for, you just... can't. It's simple contract and property law. --
Ytrew