One of the most difficult realizations you must confront in this industry is that almost everything you build will disappear. It will be ruined, ignored, slandered, and then forgotten. Almost all of your late night epiphanies and bugs conquests will fade anonymously into the anonymous blackbody spectrum entropy demands planet Earth emit.
You must come to peace with this reality. You must accept the transience of glory into your heart. You must prepare yourself, deep down, for any reality of off-sites and planned presentations and electric roadmaps to disappear in an instant. It gets easier after the first few times, trust me. You emerge a sadder and wiser man.
The only thing we can do is create moments of excellence --- occasions on which we can reflect when we are old and gray and take solace, even pride, in knowing we put every bit of ourselves into a task and did it well. There's honor and nobility in excellence even when doomed.
And who knows? You can't predict what will endure. If we're lucky, once in our careers, if we continually apply the best of ourselves, we'll do something that escapes all this destruction and endures.