Why is it that one person behave safely in one organization but unsafely in another organization ?

Our behaviour depend upon on the safety culture of any organization too, so we know when their are check and balances in a safety system we would behave safely but when we know that we can get away without being monitored we will always use that short cut

in my opinion , this would be related to how powerful safety polices and rules are applied on site , and how strong  the management would help to enforce these rules, if the management is thinking about safety and profit wise ,, this project would be successful , however if the management is weak regarding applying safety policy / rules on site ... so safety will be the least priority

It depends opon the Safety policy and the cullture of the concerned company

Organisational behavioral state is a replica of the management take on any issue of context like in this case safety. Safety follows a Top-Down approach. Therefore the epileptic behavior of this individual could have been as a result of the poor safety culture (includes poor policies, no adequate trainings etc) due hugely to nonchalant safety behavior of the management.

Effectiveness of safety policies is directly related with management and employee involvement. If management is committed to implement set standards and it involves its employees in decision making on safety matters, high standards of workplace safety will prevail in that organization. Individual behavior of employees towards safety is also related with same thing so a responsible employee will act responsible in an organization where safety is the first priority for every one and vice versa...  

There are three factors to be considered:

Organization factor,

Job factor and

Individual Factor

Organization factors:

Commitment from the top management,

Consultation and involvement of the worker

Communication

Safety Culture

Procedures and Policies

Peer group pressure

Level of Supervision

Resources

Training

Job Factors:

Task

Workload,

Environment,

Display and controls,

Policy and procedures,

Individual Factors:

Attitude

Risk perception

Incentives

If these factors will be positive, workers will behave safely

and if those will be negative, workers will behave unsafely.