This study highlights the impact of the long working hours of R&D male employees as an expression of job commitment, and analyzes the policy of the high tech workplace towards the families of shopfloor engineers from a spatial perspective. This issue is pursued in Israel, a world high tech center, where familism is highly ranked, and long working hours challenge a man's commitment to his family. R&D engineers are mostly men, in high demand and generously compensated. Discretionary employee benefits are commonly allocated to shopfloor engineers, aiming to extend their motivation and increase control over them. Indeed, commitment is an important constituent of the high tech professional culture. Perhaps the most common presentation of commitment is a time-space prism, situating the worker in the workplace for most of his waking hours. This declared commitment implies the social isolation of high tech workers, including their families. I will consider how isolation from the family is spatially implemented in the management policy, and how the work-home boundary is blurred. Gender power relations lie at the heart of this social isolation. The testimonies of twenty-two Israeli high tech managers give their view of work-family relations in the industry. The managers are well aware of the conflict produced by the long working hours and conclude the interviews with a paradox that reveals a tension between negligence of and care for their families. The paradox is solved by emphasizing the generous compensation these men receive which serves to enhance their family role as breadwinner. Altogether, it demonstrates that by establishing a special category of employee benefits and enhancing it with verbal expressions of care, both aimed at family members, the managers have manipulated local codes of familism to reduce the resistance of the families and to extend control and commitment from the workplace to the realm of the family.