There aren't really win conditions for runners in Netrunner. There is maybe a final rig setup, but the goal of running is to pressure servers where there are most likely to be agendas for the cost. Most runners tend to focus on R&D at the end of the game because that is usually where agendas are, (HQ can be cleared out with a combination of Legwork, early pressure, corporation scoring the agendas they drew, and Jackson Howard). Furthermore, the more you run H&Q, the less likely there are to be agendas there, because you eventually score them and remove them from being able to be accessed anymore. In the end of the game, especially against Fast Advance decks, you can access a lot of different cards on R&D as the Corp mandatory draws, and you can even prevent them from drawing agendas to score in some instances. You can also beat non-FA decks by "locking out" their remote by having a full breaker suite and always keeping enough money to get in, but you can't really choose R&D lock or remote locking as a win condition while deckbuilding because you have to have the ability to do either depending on the situation.