I love Seth Godin's analogy for how to protect your ideas in the digital age:
Focus on being the best tailor with the sharpest scissors, not the
litigant who sues any tailor who deigns to use a pair of scissors.
Or make the best scissors for sale. Or have the best scissor company customer service. But don't block good ideas from changing the world. Don't prevent people from using scissors because you thought of them first. (Others thought of them too!)
I think more emphasis should be put on implementation and not ideas. Ideas are a dime a dozen. Actually implementing the idea is where the work is.