If the match ends in a draw, indeed both teams will get 1 point and not make much difference in the point many difference in standing, but if that happens, actually Leverkusen will get a big loss in the match because after all they lose the opportunity to be able to shorten the gap with Munich at the moment, because with the performance and consistency that Munich currently have, it seems that indeed the other teams in the Bundesliga will be difficult to provide Defeat for Munich, so I think the match should be a golden opportunity for them to give their first defeat to Munich, besides for stay maintain them position and chance to win the championship trophy this season.
Ita going to be a really tough game as both teams would want to win so as to have a chance at the title race and so neither of both would want to loose so its only possible that it could end in a draw. Bayern literally wants to stay at the top of the table and that will cause them to want to pit in all the efforts to making sure they don't loose this game. Leverkusen aswell wants to get up the table for a chance to really defend the trophy again and so they will not want to loose this game too.