It is very usual that priorities get inverted. You'd say that one diligently designs the architecture and that afterwards everything is derived from there. But that's hardly ever the case. People in spots where money flows (e.g. sysadmin, sales, purchase) usually have more influence than those who actually matter most in the light of business strategy.
Who will be your boss? Will he back you up? Did you guys actually analyze your business to develop a business strategy? Or do you have policy by decree? What will the guys say that will become redundant as a result of your optimizations?
I hope you will succeed in pushing your company forward; Costs and efficiency are always factors. If you don't have reall backup from the business strategy then you might head towards rubber stamp. You should avoid becoming a scapegoat for the mess the shop is in.
(I say this with long experience as programmer, sysadmin and architect.)