What matters far more than brand is what you get out of the experience. There is no right or wrong entry careerpath for admission to Wharton. It's what you make of your experiences - and how you articulate that - that matters and counts.
That being said, it is naturally easier for AdCom members to understand what is going on at more established, larger brand companies (relative to more obscure entities). But that doesn't mean those companies are inherently "better" or "worse."
Make your decision on Infosys based on what you want your career to look like - not what impact it will have on your Wharton MBA prospects. If in the future you are, say, not accepted to Wharton, you should not regret your choice.