He has. But take this into account. The Executive Orders of the past have centralized power within the Executive Branch. These would actually release power from the Executive Branch, from the federal government as a whole and return much back to the states.
You pose the inspirational type approach to Congress changing based on the figurehead of Paul, but what or how exactly will he do this? You are looking at at least two years before the next major election after (if) he is elected (in theory), but the seats up for grabs there in the House wouldnt be enough to swing, it would actually be at his four year point. What would happen between day one and year four
If he holds to his values, he vetoes the bills as traviskicks suggested and requires Congress to overrule his veto. Let's say the budget goes up at $500 billion (just a number out of the air). Paul vetoes it. If things are usual in Congress there is enough discontent that budget is going to need to be cut even to get the 2/3 majority to overrule the President. So it's cut 5% down to $475 billion. The President vetoes it again, but this time it's overridden. It still passes, he hasn't traded his values, and he's cut 5% of the budget with two vetoes.
Now for the next two years of course the Democrats will be beating 'it's for the children' drum but the President by his actions (and I imagine speeches that would seem like school to some) he's getting out his message as well as revitalizing a long dead arm of the Republican party, the limited government conservatives. Get those into Congress and now you've got an even bigger hurdle for Congress to overcome to overrule a veto, meaning even more budget cuts.
Yes this is an 'inspirational approach' I'll grant you that. But at this point, I'm willing to give it a shot. Nothing else has worked. Clearly the 'incrementalism' claim by some a few years ago definitely didn't work. Note this is hypothetical but when looking at how a future action is to occur it has to be hypothetical doesn't it?
This is out of thin air stuff.
You're positing that a primary candidate of 1% to 5% support in the Republican Party will become President and voila, when he vetos a spending bill, Congress, who is likely agait him by 95 to 1 will say, gee, we can override, but let's cut spending by 5% for the good fellow from Texas.
And again and again and smaller government and again and smaller government again.
Alice in Wonderland stuff.
Let Paul stand up, reject the lunatic support he relies on today, and make his case.
We'll see where he goes.