It's not at odds at all. Tell your wife not to install third party stores or payment processors and she'll have the locked down device she wants while the rest of us can more fully use the portable computers we paid so much for.
Except you didn't pay for a portable computer. You are technically savvy. You knew what you were buying. Now that you own it, you want something different. I don't begrudge you deciding you want something different, I just don't think it is reasonable to imply that you were sold something different than you purchased.
I did pay for a portable computer. You don't get to tell me what I paid for and didn't. You have no authority here.